CISA KEV High Info disclosure exploit reference

CVE-2025-31125 — Vite Vitejs Improper Access Control Vulnerability

Vite is a frontend tooling framework for javascript. Vite exposes content of non-allowed files using ?inline&import or ?raw?import. Only apps explicitly exposing the Vite dev server to the network (using --host or server.host config option) are affected. This vulnerability is fixed in 6.2.4, 6.1.3, 6.0.13, 5.4.16, and 4.5.11.

Published Mar 31, 2025 · Updated Oct 13, 2026 · Sources: CISA Known Exploited Vulnerabilities, NIST National Vulnerability Database, CVE Program (cve.org) e CISA ADP, GitHub Security Advisories · CNA: GitHub_M

High

Who exploits it and how urgent it is

A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.

CISA KEV · Jan 22, 2026 Detection templates (Nuclei) · 1 Proofs of concept on GitHub · 4

How the score was calculated

Confirmed exploitation (CISA KEV)+35
Public exploit/PoC (nuclei, github)+10
EPSS 65.2% (30-day exploitation probability)+15
Technical severity (high)+6

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 Jan 22, 2026

EPSS FIRST

65.19%

ahead of 99% of scored CVEs · Oct 15, 2026

Affects

Vitejs

Vite

CVSS base

7.5

High · 4 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

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 patch — github.com (NIST National Vulnerability Database)
Npm Vite: fixed in version 6.2.4 — github.com (GitHub Security Advisories)
Npm Vite: fixed in version 6.1.3 — github.com (GitHub Security Advisories)
Npm Vite: fixed in version 6.0.13 — github.com (GitHub Security Advisories)
Npm Vite: fixed in version 5.4.16 — github.com (GitHub Security Advisories)
Npm Vite: fixed in version 4.5.11 — 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: Feb 12, 2026 — passed 246 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 (Vitejs Vite, Npm Vite).
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.
EPSS ahead of 99% of scored CVEs: prioritize it in the patch queue.
Search available logs for exploit probes matching the vulnerability class (info disclosure), errors and authentication anomalies.

Affected scope

Vendor, product and versions as the sources word them.

Vendor	Product	Versions	Status	Source
Vitejs	Vite	< 4.5.11≥ 5.0.0 and < 5.4.16≥ 6.0.0 and < 6.0.13≥ 6.1.0 and < 6.1.3≥ 6.2.0 and < 6.2.4	Vulnerable	NIST National Vulnerability Database
Vitejs	Vite	version >= 6.2.0, < 6.2.4version >= 6.1.0, < 6.1.3version >= 6.0.0, < 6.0.13version >= 5.0.0, < 5.4.16version < 4.5.11	Vulnerable	CVE Program (cve.org) e CISA ADP
Npm	Vite	≥ 6.2.0 and < 6.2.4≥ 6.1.0 and < 6.1.3≥ 6.0.0 and < 6.0.13≥ 5.0.0 and < 5.4.16< 4.5.11	Vulnerable	GitHub Security Advisories

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

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

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
7.5	CVSS 3.1	High	3.9	3.6	nvd@nist.gov via NIST National Vulnerability Database
5.3	CVSS 3.1	Medium	1.6	3.6	security-advisories@github.com via NIST National Vulnerability Database
5.3	CVSS 3.1	Medium	—	—	GitHub, Inc. via GitHub Security Advisories
5.3	CVSS 3.1	Medium	—	—	GitHub_M via CVE Program (cve.org) e CISA ADP

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N (score shown at the top: nvd@nist.gov)

Scoring entities (NIST, CNA, ADP) score independently; each score is shown with its origin. For prioritization we use 7.5 (NVD (NIST)) as a conservative provisional reference — not a definitive official score.

Weakness MITRE

Weakness class according to MITRE’s CWE catalog.

CWE-200 · Exposure of Sensitive Information

Other CVEs with this weakness →

CISA KEV details CISA

CISA lists a CVE once it has evidence of exploitation against real targets.

Listed

Jan 22, 2026

Federal deadline

Feb 12, 2026

passed 246 day(s) ago

Ransomware use

Unknown

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.

Detection templates (Nuclei)

Vite Development Server - Path Traversal

Proofs of concept on GitHub

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 15, 2026 · 4 reading(s) · max 65.19%

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).
Look for anomalous data read/export volumes and access to sensitive records.
Hunt retroactively in logs from before Jan 22, 2026 (KEV listing): exploitation may have started earlier.

web/proxy/WAF logsnetwork IDS/IPSapplication logsauthentication logs

Timeline

What happened to this CVE, newest first.

2026
Fix documented
Oct 13, 2026 · GitHub Security Advisories
Affected products added · npm/vite
Oct 13, 2026 · GitHub Security Advisories
Affected products added · vitejs/vite
Oct 13, 2026 · CVE Program (cve.org) e CISA ADP
SSVC assessment updated
Oct 13, 2026 · CVE Program (cve.org) e CISA ADP
Record published
Oct 13, 2026
Fix documented
Oct 13, 2026 · NIST National Vulnerability Database
Affected products added · vitejs/vite
Oct 13, 2026 · NIST National Vulnerability Database
CVSS changed · 7.5
Oct 13, 2026 · NIST National Vulnerability Database
Source status changed · → Analyzed
Oct 13, 2026 · NIST National Vulnerability Database
Added to CISA KEV (detected)
Oct 13, 2026 · CISA Known Exploited Vulnerabilities
Record created in this database
Oct 13, 2026 · CISA Known Exploited Vulnerabilities
Added to CISA KEV catalog
Jan 21, 2026 · CISA
2025
CVE published
Mar 31, 2025 · GitHub_M

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

5 on the record

github.com/vitejs/vite/security/advisories/GHSA-4r4m-qw57-chr8
Exploit, Vendor Advisory, x_refsource_CONFIRM, NIST National Vulnerability Database
github.com/vitejs/vite/commit/59673137c45ac2bcfad1170d954347c1a17ab949
Patch, x_refsource_MISC, NIST National Vulnerability Database
www.cisa.gov/known-exploited-vulnerabilities-catalog
US Government Resource, NIST National Vulnerability Database
nvd.nist.gov/vuln/detail/CVE-2025-31125
GitHub Security Advisories
github.com/advisories/GHSA-4r4m-qw57-chr8
GitHub Security Advisories

Elsewhere on this site

Vitejs
every CVE for this vendor

2026-01
what else CISA listed that month

Info disclosure
same class

CWE-200
other pages naming this weakness

Related CVEs (same products)

High CVE-2026-53571 Vite: `server.fs.deny` bypass on Windows alternate paths Jun 22, 2026
Medium CVE-2026-53632 NTLMv2 hash disclosure via UNC path handling on Windows Jun 22, 2026
High CVE-2024-52011 launch-editor vulnerable to command injection via the crafted request on Windows Jun 1, 2026
High CVE-2026-39363 Vite Affected by Arbitrary File Read via Vite Dev Server WebSocket Apr 7, 2026
High CVE-2026-39364 Vite has a `server.fs.deny` bypass with queries Apr 7, 2026
Medium CVE-2026-39365 Vite has a Path Traversal in Optimized Deps `.map` Handling Apr 7, 2026

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-2025-31125 is "Vite Vitejs Improper Access Control Vulnerability", rated High. It affects Vite (Vitejs); versions are in the scope table. It is in CISA KEV: there is evidence of real-world exploitation. CVSS 7.5 describes technical severity. EPSS 65.19% 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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