CISA KEV Critical
exploit reference
CVE-2026-45321 — TanStack Unspecified Vulnerability
On 2026-05-11, between approximately 19:20 and 19:26 UTC, 84 malicious versions across 42 @tanstack/* packages were published to the npm registry. The publishes were authenticated via the legitimate GitHub Actions OIDC trusted-publisher binding for TanStack/router, but the publish workflow itself was not modified. The attacker chained three known vulnerability classes — a pull_request_target "Pwn Request" misconfiguration, GitHub Actions cache poisoning across the fork↔base trust boundary, and runtime memory extraction of the OIDC token from the Actions runner process — to publish credential-stealing malware under a trusted identity. Each affected package received exactly two malicious versions, published a few minutes apart.
71
Urgent
Who exploits it and how urgent it is
A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.
How the score was calculated
- Confirmed exploitation (CISA KEV)+35
- Used in ransomware campaigns (CISA)+10
- Public exploit/PoC (github)+6
- EPSS 1.1% (30-day exploitation probability)+10
- Technical severity (critical)+10
The score orders the patch queue; it does not replace your asset context (internet exposure, criticality, compensating controls).
Triage
Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.
Exploitation
Confirmed
CISA KEV, listed May 27, 2026
EPSS FIRST
1.05%
ahead of 64% of scored CVEs · Oct 14, 2026
Affects
Abhishake1
Supersurkhet/cli and 90 more
CVSS base
9.6
Critical · 3 source(s)
CISA SSVC assessment CISA
Three decision points CISA publishes for the CVEs it assesses (SSVC 2.0.3). A stakeholder decision, not a severity score.
Exploitation
Active
none · proof-of-concept · active
Automatable
No
can an attacker script the kill-chain steps
Technical impact
Total
partial · total control of the vulnerable component
Remediation
Fixes and mitigations documented by the sources — linked to the original advisory.
- Documented mitigation — github.com (NIST National Vulnerability Database)
- Npm @tanstack/arktype-adapter: fixed in version 1.166.16 — github.com (GitHub Security Advisories)
- Npm @tanstack/eslint-plugin-router: fixed in version 1.161.13 — github.com (GitHub Security Advisories)
- Npm @tanstack/eslint-plugin-start: fixed in version 0.0.8 — github.com (GitHub Security Advisories)
- Npm @tanstack/history: fixed in version 1.161.13 — github.com (GitHub Security Advisories)
- Npm @tanstack/nitro-v2-vite-plugin: fixed in version 1.154.16 — github.com (GitHub Security Advisories)
- Npm @tanstack/react-router: fixed in version 1.169.9 — github.com (GitHub Security Advisories)
- Npm @tanstack/react-router-devtools: fixed in version 1.166.20 — github.com (GitHub Security Advisories)
- Npm @tanstack/react-router-ssr-query: fixed in version 1.166.19 — github.com (GitHub Security Advisories)
- Npm @tanstack/react-start: fixed in version 1.167.72 — github.com (GitHub Security Advisories)
- Npm @tanstack/react-start-client: fixed in version 1.166.55 — github.com (GitHub Security Advisories)
- Npm @tanstack/react-start-rsc: fixed in version 0.0.51 — github.com (GitHub Security Advisories)
- Npm @tanstack/react-start-server: fixed in version 1.166.59 — github.com (GitHub Security Advisories)
- Npm @tanstack/router-cli: fixed in version 1.166.50 — github.com (GitHub Security Advisories)
- Npm @tanstack/router-core: fixed in version 1.169.9 — github.com (GitHub Security Advisories)
- Npm @tanstack/router-devtools: fixed in version 1.166.20 — github.com (GitHub Security Advisories)
- Npm @tanstack/router-devtools-core: fixed in version 1.167.10 — github.com (GitHub Security Advisories)
- Npm @tanstack/router-generator: fixed in version 1.166.49 — github.com (GitHub Security Advisories)
- Npm @tanstack/router-plugin: fixed in version 1.167.42 — github.com (GitHub Security Advisories)
- Npm @tanstack/router-ssr-query-core: fixed in version 1.168.7 — github.com (GitHub Security Advisories)
- Npm @tanstack/router-utils: fixed in version 1.161.15 — github.com (GitHub Security Advisories)
- Npm @tanstack/router-vite-plugin: fixed in version 1.166.57 — github.com (GitHub Security Advisories)
- Npm @tanstack/solid-router: fixed in version 1.169.9 — github.com (GitHub Security Advisories)
- Npm @tanstack/solid-router-devtools: fixed in version 1.166.20 — github.com (GitHub Security Advisories)
- Npm @tanstack/solid-router-ssr-query: fixed in version 1.166.19 — github.com (GitHub Security Advisories)
- Npm @tanstack/solid-start: fixed in version 1.167.69 — github.com (GitHub Security Advisories)
- Npm @tanstack/solid-start-client: fixed in version 1.166.54 — github.com (GitHub Security Advisories)
- Npm @tanstack/solid-start-server: fixed in version 1.166.58 — github.com (GitHub Security Advisories)
- Npm @tanstack/start-client-core: fixed in version 1.168.9 — github.com (GitHub Security Advisories)
- Npm @tanstack/start-fn-stubs: fixed in version 1.161.13 — github.com (GitHub Security Advisories)
- Npm @tanstack/start-plugin-core: fixed in version 1.169.27 — github.com (GitHub Security Advisories)
- Npm @tanstack/start-server-core: fixed in version 1.167.37 — github.com (GitHub Security Advisories)
- Npm @tanstack/start-static-server-functions: fixed in version 1.166.48 — github.com (GitHub Security Advisories)
- Npm @tanstack/start-storage-context: fixed in version 1.166.42 — github.com (GitHub Security Advisories)
- Npm @tanstack/valibot-adapter: fixed in version 1.166.16 — github.com (GitHub Security Advisories)
- Npm @tanstack/virtual-file-routes: fixed in version 1.161.14 — github.com (GitHub Security Advisories)
- Npm @tanstack/vue-router: fixed in version 1.169.9 — github.com (GitHub Security Advisories)
- Npm @tanstack/vue-router-devtools: fixed in version 1.166.20 — github.com (GitHub Security Advisories)
- Npm @tanstack/vue-router-ssr-query: fixed in version 1.166.19 — github.com (GitHub Security Advisories)
- Npm @tanstack/vue-start: fixed in version 1.167.65 — github.com (GitHub Security Advisories)
- Npm @tanstack/vue-start-client: fixed in version 1.166.50 — github.com (GitHub Security Advisories)
- Npm @tanstack/vue-start-server: fixed in version 1.166.54 — github.com (GitHub Security Advisories)
- Npm @tanstack/zod-adapter: fixed in version 1.166.16 — github.com (GitHub Security Advisories)
CISA required action CISA
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
US federal deadline: Jun 10, 2026 — passed 127 day(s) ago
First 24 hours
Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.
- Identify exposed assets running the affected vendor/product/version combinations (Abhishake1 Supersurkhet/cli, Abhishake1 Supersurkhet/sdk, Abhishake1 Taskflow-corp/cli…).
- Treat as emergency remediation: the CVE is in CISA KEV (confirmed exploitation).
- The attack is network-based and needs no privileges: restrict exposure (ACLs, VPN, WAF) until patched.
- Apply the fixed version or the patch documented under Remediation.
- Exploitation requires user interaction: tighten email/web filtering and warn affected users.
- Search available logs for exploit probes, errors and authentication anomalies.
Affected scope
Vendor, product and versions as the sources word them.
| Vendor | Product | Versions | Status | Source |
|---|---|---|---|---|
| Abhishake1 | Supersurkhet/cli | version 0.0.2version 0.0.3version 0.0.4version 0.0.5version 0.0.6version 0.0.7 | Vulnerable | NIST National Vulnerability Database |
| Abhishake1 | Supersurkhet/sdk | version 0.0.2version 0.0.3version 0.0.4version 0.0.5version 0.0.6version 0.0.7 | Vulnerable | NIST National Vulnerability Database |
| Abhishake1 | Taskflow-corp/cli | version 0.1.24version 0.1.25version 0.1.26version 0.1.27version 0.1.28version 0.1.29 | Vulnerable | NIST National Vulnerability Database |
| Agentworkhq | Agentwork-cli | version 0.1.4version 0.1.5 | Vulnerable | NIST National Vulnerability Database |
| Antoinebcx | Ml-toolkit-ts | version 1.0.4version 1.0.5 | Vulnerable | NIST National Vulnerability Database |
| Antoinebcx | Ml-toolkit-ts/preprocessing | version 1.0.2version 1.0.3 | Vulnerable | NIST National Vulnerability Database |
| Antoinebcx | Ml-toolkit-ts/xgboost | version 1.0.3version 1.0.4 | Vulnerable | NIST National Vulnerability Database |
| Beproduct | Beproduct/nestjs-auth |
version 0.1.2version 0.1.3version 0.1.4version 0.1.5version 0.1.6version 0.1.7version 0.1.8version 0.1.9 and 9 moreversion 0.1.10version 0.1.11version 0.1.12version 0.1.13version 0.1.14version 0.1.15version 0.1.16version 0.1.17version 0.1.19 |
Vulnerable | NIST National Vulnerability Database |
| Christianalares | Git Branch Selector | version 1.3.3version 1.3.4version 1.3.5version 1.3.7 | Vulnerable | NIST National Vulnerability Database |
| Christianalares | Git-git-git | version 1.0.8version 1.0.9version 1.0.10version 1.0.12 | Vulnerable | NIST National Vulnerability Database |
| Christianalares | Nextmove-mcp | version 0.1.3version 0.1.4version 0.1.5version 0.1.7 | Vulnerable | NIST National Vulnerability Database |
| Christianalares | Tolka/cli | version 1.0.2version 1.0.3version 1.0.4version 1.0.6 | Vulnerable | NIST National Vulnerability Database |
| Dirigible | Dirigible-ai/sdk | version 0.6.2version 0.6.3 | Vulnerable | NIST National Vulnerability Database |
| Guardrailsai | Guardrails Ai | version 0.10.1 | Vulnerable | NIST National Vulnerability Database |
| Kilbot | Tallyui/components | version 1.0.1version 1.0.2version 1.0.3 | Vulnerable | NIST National Vulnerability Database |
| Kilbot | Tallyui/connector-medusa | version 1.0.1version 1.0.2version 1.0.3 | Vulnerable | NIST National Vulnerability Database |
| Kilbot | Tallyui/connector-shopify | version 1.0.1version 1.0.2version 1.0.3 | Vulnerable | NIST National Vulnerability Database |
| Kilbot | Tallyui/connector-vendure | version 1.0.1version 1.0.2version 1.0.3 | Vulnerable | NIST National Vulnerability Database |
| Kilbot | Tallyui/connector-woocommerce | version 1.0.1version 1.0.2version 1.0.3 | Vulnerable | NIST National Vulnerability Database |
| Kilbot | Tallyui/core | version 0.2.1version 0.2.2version 0.2.3 | Vulnerable | NIST National Vulnerability Database |
| Kilbot | Tallyui/database | version 1.0.1version 1.0.2version 1.0.3 | Vulnerable | NIST National Vulnerability Database |
| Kilbot | Tallyui/pos | version 0.1.1version 0.1.2version 0.1.3 | Vulnerable | NIST National Vulnerability Database |
| Kilbot | Tallyui/storage-sqlite | version 0.2.1version 0.2.2version 0.2.3 | Vulnerable | NIST National Vulnerability Database |
| Kilbot | Tallyui/theme | version 0.2.1version 0.2.2version 0.2.3 | Vulnerable | NIST National Vulnerability Database |
| Linuxfoundation | Opensearch | version 3.6.2 | Vulnerable | NIST National Vulnerability Database |
| Matheuspergoli | Draftauth/client | version 0.2.1version 0.2.2 | Vulnerable | NIST National Vulnerability Database |
| Matheuspergoli | Draftauth/core | version 0.13.1version 0.13.2 | Vulnerable | NIST National Vulnerability Database |
| Matheuspergoli | Draftlab/auth | version 0.24.1version 0.24.2 | Vulnerable | NIST National Vulnerability Database |
| Matheuspergoli | Draftlab/auth-router | version 0.5.1version 0.5.2 | Vulnerable | NIST National Vulnerability Database |
| Matheuspergoli | Draftlab/db | version 0.16.1version 0.16.2 | Vulnerable | NIST National Vulnerability Database |
| Matheuspergoli | Simple Type-safe Actions | version 0.8.3version 0.8.4 | Vulnerable | NIST National Vulnerability Database |
| Mesa | Mesadev/rest | version 0.28.3 | Vulnerable | NIST National Vulnerability Database |
| Mesa | Mesadev/saguaro | version 0.4.22 | Vulnerable | NIST National Vulnerability Database |
| Mesa | Mesadev/sdk | version 0.28.3 | Vulnerable | NIST National Vulnerability Database |
| Mistral | Mistralai | version 2.4.6 | Vulnerable | NIST National Vulnerability Database |
| Mistral | Mistralai/mistralai | version 2.2.3version 2.2.4 | Vulnerable | NIST National Vulnerability Database |
| Mistral | Mistralai/mistralai-azure | version 1.7.2version 1.7.3 | Vulnerable | NIST National Vulnerability Database |
| Mistral | Mistralai/mistralai-gcp | version 1.7.2version 1.7.3 | Vulnerable | NIST National Vulnerability Database |
| Multiagentcognition | Cmux-agent-mcp | version 0.1.3version 0.1.4version 0.1.5version 0.1.6version 0.1.7version 0.1.8 | Vulnerable | NIST National Vulnerability Database |
| Neilcochran | Cross-stitch | version 1.1.3version 1.1.4version 1.1.6 | Vulnerable | NIST National Vulnerability Database |
| Neilcochran | Squawk/airports | version 0.6.2version 0.6.3version 0.6.5 | Vulnerable | NIST National Vulnerability Database |
| Neilcochran | Squawk/airspace | version 0.8.1version 0.8.2version 0.8.4 | Vulnerable | NIST National Vulnerability Database |
| Neilcochran | Squawk/airspace-data | version 0.5.3version 0.5.4version 0.5.6 | Vulnerable | NIST National Vulnerability Database |
| Neilcochran | Squawk/airway-data | version 0.5.4version 0.5.5version 0.5.7 | Vulnerable | NIST National Vulnerability Database |
| Neilcochran | Squawk/airways | version 0.4.2version 0.4.3version 0.4.5 | Vulnerable | NIST National Vulnerability Database |
| Neilcochran | Squawk/fix-data | version 0.6.4version 0.6.5version 0.6.7 | Vulnerable | NIST National Vulnerability Database |
| Neilcochran | Squawk/fixes | version 0.3.2version 0.3.3version 0.3.5 | Vulnerable | NIST National Vulnerability Database |
| Neilcochran | Squawk/flight-math | version 0.5.4version 0.5.5version 0.5.7 | Vulnerable | NIST National Vulnerability Database |
| Neilcochran | Squawk/flightplan | version 0.5.2version 0.5.3version 0.5.5 | Vulnerable | NIST National Vulnerability Database |
| Neilcochran | Squawk/geo | version 0.4.4version 0.4.5version 0.4.7 | Vulnerable | NIST National Vulnerability Database |
| Neilcochran | Squawk/icao-registry | version 0.5.2version 0.5.3version 0.5.5 | Vulnerable | NIST National Vulnerability Database |
| Neilcochran | Squawk/icao-registry-data | version 0.8.4version 0.8.5version 0.8.7 | Vulnerable | NIST National Vulnerability Database |
| Neilcochran | Squawk/mcp | version 0.9.1version 0.9.2version 0.9.4 | Vulnerable | NIST National Vulnerability Database |
| Neilcochran | Squawk/navaid-data | version 0.6.4version 0.6.5version 0.6.7 | Vulnerable | NIST National Vulnerability Database |
| Neilcochran | Squawk/navaids | version 0.4.2version 0.4.3version 0.4.5 | Vulnerable | NIST National Vulnerability Database |
| Neilcochran | Squawk/notams | version 0.3.6version 0.3.7version 0.3.9 | Vulnerable | NIST National Vulnerability Database |
| Neilcochran | Squawk/procedure-data | version 0.7.3version 0.7.4version 0.7.6 | Vulnerable | NIST National Vulnerability Database |
| Neilcochran | Squawk/procedures | version 0.5.2version 0.5.3version 0.5.5 | Vulnerable | NIST National Vulnerability Database |
| Neilcochran | Squawk/types | version 0.8.1version 0.8.2version 0.8.4 | Vulnerable | NIST National Vulnerability Database |
| Neilcochran | Squawk/units | version 0.4.3version 0.4.4version 0.4.6 | Vulnerable | NIST National Vulnerability Database |
| Neilcochran | Squawk/weather | version 0.5.6version 0.5.7version 0.5.9 | Vulnerable | NIST National Vulnerability Database |
| Neilcochran | Ts-dna | version 3.0.1version 3.0.2version 3.0.4 | Vulnerable | NIST National Vulnerability Database |
| Neilcochran | Wot-api | version 0.8.1version 0.8.2version 0.8.4 | Vulnerable | NIST National Vulnerability Database |
| Tanstack | Outer-vite-plugin | version 1.166.53version 1.166.56 | Vulnerable | CVE Program (cve.org) e CISA ADP |
| Tanstack | Tanstack/arktype-adapter | version 1.166.12version 1.166.15 | Vulnerable | NIST National Vulnerability Database |
| Tanstack | Tanstack/arktype-adapter | version 1.166.12version 1.166.15 | Vulnerable | CVE Program (cve.org) e CISA ADP |
| Tanstack | Tanstack/eslint-plugin-router | version 1.161.9version 1.161.12 | Vulnerable | NIST National Vulnerability Database |
| Tanstack | Tanstack/eslint-plugin-router | version 1.161.9version 1.161.12 | Vulnerable | CVE Program (cve.org) e CISA ADP |
| Tanstack | Tanstack/eslint-plugin-start | version 0.0.4version 0.0.7 | Vulnerable | NIST National Vulnerability Database |
| Tanstack | Tanstack/eslint-plugin-start | version 0.0.4version 0.0.7 | Vulnerable | CVE Program (cve.org) e CISA ADP |
| Tanstack | Tanstack/history | version 1.161.9version 1.161.12 | Vulnerable | NIST National Vulnerability Database |
| Tanstack | Tanstack/history | version 1.161.9version 1.161.12 | Vulnerable | CVE Program (cve.org) e CISA ADP |
| Tanstack | Tanstack/nitro-v2-vite-plugin | version 1.154.12version 1.154.15 | Vulnerable | NIST National Vulnerability Database |
| Tanstack | Tanstack/nitro-v2-vite-plugin | version 1.154.12version 1.154.15 | Vulnerable | CVE Program (cve.org) e CISA ADP |
| Tanstack | Tanstack/react-router | version 1.169.5version 1.169.8 | Vulnerable | NIST National Vulnerability Database |
| Tanstack | Tanstack/react-router | version 1.169.5version 1.169.8 | Vulnerable | CVE Program (cve.org) e CISA ADP |
| Tanstack | Tanstack/react-router-devtools | version 1.166.16version 1.166.19 | Vulnerable | NIST National Vulnerability Database |
| Tanstack | Tanstack/react-router-devtools | version 1.166.16version 1.166.19 | Vulnerable | CVE Program (cve.org) e CISA ADP |
| Tanstack | Tanstack/react-router-ssr-query | version 1.166.15version 1.166.18 | Vulnerable | NIST National Vulnerability Database |
| Tanstack | Tanstack/react-router-ssr-query | version 1.166.15version 1.166.18 | Vulnerable | CVE Program (cve.org) e CISA ADP |
| Tanstack | Tanstack/react-start | version 1.167.68version 1.167.71 | Vulnerable | NIST National Vulnerability Database |
| Tanstack | Tanstack/react-start | version 1.167.68version 1.167.71 | Vulnerable | CVE Program (cve.org) e CISA ADP |
| Tanstack | Tanstack/react-start-client | version 1.166.51version 1.166.54 | Vulnerable | NIST National Vulnerability Database |
| Tanstack | Tanstack/react-start-client | version 1.166.51version 1.166.54 | Vulnerable | CVE Program (cve.org) e CISA ADP |
| Tanstack | Tanstack/react-start-rsc | version 0.0.47version 0.0.50 | Vulnerable | NIST National Vulnerability Database |
| Tanstack | Tanstack/react-start-rsc | version 0.0.47version 0.0.50 | Vulnerable | CVE Program (cve.org) e CISA ADP |
| Tanstack | Tanstack/react-start-server | version 1.166.55version 1.166.58 | Vulnerable | NIST National Vulnerability Database |
| Tanstack | Tanstack/react-start-server | version 1.166.55version 1.166.58 | Vulnerable | CVE Program (cve.org) e CISA ADP |
| Tanstack | Tanstack/router-cli | version 1.166.46version 1.166.49 | Vulnerable | NIST National Vulnerability Database |
| Tanstack | Tanstack/router-cli | version 1.166.46version 1.166.49 | Vulnerable | CVE Program (cve.org) e CISA ADP |
| Tanstack | Tanstack/router-core | version 1.169.5version 1.169.8 | Vulnerable | NIST National Vulnerability Database |
| Tanstack | Tanstack/router-core | version 1.169.5version 1.169.8 | Vulnerable | CVE Program (cve.org) e CISA ADP |
| Tanstack | Tanstack/router-devtools | version 1.166.16version 1.166.19 | Vulnerable | NIST National Vulnerability Database |
| Tanstack | Tanstack/router-devtools | version 1.166.16version 1.166.19 | Vulnerable | CVE Program (cve.org) e CISA ADP |
| Tanstack | Tanstack/router-devtools-core | version 1.167.6version 1.167.9 | Vulnerable | NIST National Vulnerability Database |
| Tanstack | Tanstack/router-devtools-core | version 1.167.6version 1.167.9 | Vulnerable | CVE Program (cve.org) e CISA ADP |
| Tanstack | Tanstack/router-generator | version 1.166.45version 1.166.48 | Vulnerable | NIST National Vulnerability Database |
| Tanstack | Tanstack/router-generator | version 1.166.45version 1.166.48 | Vulnerable | CVE Program (cve.org) e CISA ADP |
| Tanstack | Tanstack/router-plugin | version 1.167.38version 1.167.41 | Vulnerable | NIST National Vulnerability Database |
| Tanstack | Tanstack/router-plugin | version 1.167.38version 1.167.41 | Vulnerable | CVE Program (cve.org) e CISA ADP |
| Tanstack | Tanstack/router-ssr-query-core | version 1.168.3version 1.168.6 | Vulnerable | NIST National Vulnerability Database |
| Tanstack | Tanstack/router-ssr-query-core | version 1.168.3version 1.168.6 | Vulnerable | CVE Program (cve.org) e CISA ADP |
| Tanstack | Tanstack/router-utils | version 1.161.11version 1.161.14 | Vulnerable | NIST National Vulnerability Database |
| Tanstack | Tanstack/router-utils | version 1.161.11version 1.161.14 | Vulnerable | CVE Program (cve.org) e CISA ADP |
| Tanstack | Tanstack/router-vite-plugin | version 1.166.53version 1.166.56 | Vulnerable | NIST National Vulnerability Database |
| Tanstack | Tanstack/solid-router | version 1.169.5version 1.169.8 | Vulnerable | NIST National Vulnerability Database |
| Tanstack | Tanstack/solid-router | version 1.169.5version 1.169.8 | Vulnerable | CVE Program (cve.org) e CISA ADP |
| Tanstack | Tanstack/solid-router-devtools | version 1.166.16version 1.166.19 | Vulnerable | NIST National Vulnerability Database |
| Tanstack | Tanstack/solid-router-devtools | version 1.166.16version 1.166.19 | Vulnerable | CVE Program (cve.org) e CISA ADP |
| Tanstack | Tanstack/solid-router-ssr-query | version 1.166.15version 1.166.18 | Vulnerable | NIST National Vulnerability Database |
| Tanstack | Tanstack/solid-router-ssr-query | version 1.166.15version 1.166.18 | Vulnerable | CVE Program (cve.org) e CISA ADP |
| Tanstack | Tanstack/solid-start | version 1.167.65version 1.167.68 | Vulnerable | NIST National Vulnerability Database |
| Tanstack | Tanstack/solid-start | version 1.167.65version 1.167.68 | Vulnerable | CVE Program (cve.org) e CISA ADP |
| Tanstack | Tanstack/solid-start-client | version 1.166.50version 1.166.53 | Vulnerable | NIST National Vulnerability Database |
| Tanstack | Tanstack/solid-start-client | version 1.166.50version 1.166.53 | Vulnerable | CVE Program (cve.org) e CISA ADP |
| Tanstack | Tanstack/solid-start-server | version 1.166.54version 1.166.57 | Vulnerable | NIST National Vulnerability Database |
| Tanstack | Tanstack/solid-start-server | version 1.166.54 | Vulnerable | CVE Program (cve.org) e CISA ADP |
Attack characteristics
The CVSS vector, decoded. It describes the attack, not your exposure to it.
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High
Every base score collected
Sources score independently and may disagree; each row says who scored it and under which version.
| Score | Version | Severity | Expl. | Impact | Scored by |
|---|---|---|---|---|---|
| 9.6 | CVSS 3.1 | Critical | 2.8 | 6.0 | security-advisories@github.com via NIST National Vulnerability Database |
| 9.6 | CVSS 3.1 | Critical | — | — | GitHub, Inc. via GitHub Security Advisories |
| 9.6 | CVSS 3.1 | Critical | — | — | GitHub_M via CVE Program (cve.org) e CISA ADP |
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H (score shown at the top: security-advisories@github.com) Weakness MITRE
Weakness class according to MITRE’s CWE catalog.
CISA KEV details CISA
CISA lists a CVE once it has evidence of exploitation against real targets.
Listed
May 27, 2026
Federal deadline
Jun 10, 2026
passed 127 day(s) ago
Ransomware use
Known
CISA records ransomware use only for campaigns it has confirmed, so “Unknown” means unrecorded, not ruled out. The deadline binds US federal agencies; for everyone else it is a reference date.
Public exploits, PoCs and detection templates
Public code that demonstrates or tests the flaw raises the odds of mass exploitation — and Nuclei templates help find vulnerable assets in your environment.
Proofs of concept on GitHub — 12 repositories; showing the 10 most starred
- Scanner for the Mini Shai-Hulud npm/PyPI supply chain worm (NHS CC-4781 · CVE-2026-45321). Detects gh-token-monitor persistence, payload artefacts, and attacker commits. Python, Bash, PowerShell. ★ 2 May 13, 2026
- Shell script to detect TanStack npm supply chain attack indicators (CVE-2026-45321 / GHSA-g7cv-rxg3-hmpx) ★ 2 May 16, 2026
- Detect CVE-2026-45321 Mini Shai-Hulud supply chain compromise — scans for 170 npm + 2 PyPI poisoned packages across TanStack, Mistral AI, UiPath, OpenSearch, Guardrails AI ★ 1 May 12, 2026
- Claude Code skill to scan machines for Mini Shai-Hulud (CVE-2026-45321) supply chain worm IOCs ★ 1 May 12, 2026
- IOC checker for the TanStack/Mini Shai-Hulud npm supply chain attack (CVE-2026-45321) ★ 1 May 18, 2026
- Detects CVE-2026-45321 (TanStack supply chain compromise) and Mini Shai-Hulud worm artifacts. Scans node_modules, lockfiles, persistence hooks (Claude Code, VS Code, systemd, LaunchAgent), GitHub workflows, git history, C2 domains, and AI tool configs. ★ 0 May 12, 2026
- Are you get Tanstack Supply chain attack attack of 5/11? CVE-2026-45321 / GHSA-g7cv-rxg3-hmpx ★ 0 May 12, 2026
- 🛡️ One-command scanner for CVE-2026-45321 — TanStack npm supply-chain attack ★ 0 May 12, 2026
- Zero-dependency CLI scanner for npm/PyPI supply chain compromises. Detects compromised packages in lockfiles and system-level IOCs from attacks like Mini Shai-Hulud (CVE-2026-45321). ★ 0 May 16, 2026
- One-command scanner for the Mini Shai-Hulud npm supply-chain worm (CVE-2026-45321). Detect before rotating tokens. ★ 0 May 20, 2026
Warning: public PoCs are sometimes disguised malware. Use them only for authorized testing in an isolated environment. This portal does not host exploit code — it only points to the sources.
EPSS over time FIRST
Oct 12, 2026 → Oct 14, 2026 · 3 reading(s) · max 1.05%
Detection
Read off the CVSS vector and the weakness class. Starting points, not tested rules.
- Prioritize edge telemetry for the network-reachable component (proxy, WAF, IDS/IPS).
- Hunt retroactively in logs from before May 27, 2026 (KEV listing): exploitation may have started earlier.
Timeline
What happened to this CVE, newest first.
- 2026
- Fix documented
- Affected products added · npm/@tanstack/arktype-adapter, npm/@tanstack/eslint-plugin-router, npm/@tanstack/eslint-plugin-start, npm/@tanstack/hist
- Affected products added · @tanstack/arktype-adapter, @tanstack/eslint-plugin-router, @tanstack/eslint-plugin-start, @tanstack/history, @tanstack/n
- SSVC assessment updated
- Record published
- Fix documented
- Affected products added · tanstack/tanstack/arktype-adapter, tanstack/tanstack/eslint-plugin-router, tanstack/tanstack/eslint-plugin-start, tansta
- CVSS changed · 9.6
- Source status changed · → Analyzed
- Added to CISA KEV (detected)
- Record created in this database
- Added to CISA KEV catalog
- CVE published
Source activity
Repeated readings are counted rather than listed.
- 2× References added · Oct 13, 2026 – Oct 13, 2026
- 1× Official description updated · Oct 13, 2026 – Oct 13, 2026
References
8 on the record
- tanstack.com/blog/npm-supply-chain-compromise-postmortem
- github.com/TanStack/router/security/advisories/GHSA-g7cv-rxg3-hmpx
- www.cisa.gov/known-exploited-vulnerabilities-catalog
- github.com/TanStack/router/issues/7383
- socket.dev/blog/tanstack-npm-packages-compromised-mini-shai-hulud-supply-chain-a
- nvd.nist.gov/vuln/detail/CVE-2026-45321
- www.stepsecurity.io/blog/mini-shai-hulud-is-back-a-self-spreading-supply-chain-attack-hit
- github.com/advisories/GHSA-g7cv-rxg3-hmpx
Elsewhere on this site
Related CVEs (same products)
- Critical CVE-2026-102989 TanStack Router: Unauthenticated reflected XSS in TanStack Start server-function responses 2d
Not in any source we poll
Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.
- No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
- No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
- No exploit packet captures, log samples, or incident case IDs supplied.
Answered from this record
Text assembled only from the fields above — no additional claims.
What should defenders know first?
CVE-2026-45321 is "TanStack Unspecified Vulnerability", rated Critical. It affects Supersurkhet/cli (Abhishake1); versions are in the scope table. It is in CISA KEV: there is evidence of real-world exploitation. CVSS 9.6 describes technical severity. EPSS 1.05% estimates the probability of exploitation in 30 days; neither replaces your asset context. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.
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