CVE Intelligence
High

CVE-2026-115570 — Electron: Mitigation for compromised eMudhra intermediate certificates

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 42.11.16, 43.8.1, 44.9.1, and 45.0.0-beta.6, Electron does not block compromised eMudhra intermediate certificates in Chromium networking, Node.js tls, Node.js https, or Node.js fetch. An attacker who holds a certificate issued through one of these intermediates and can intercept network traffic can impersonate a TLS server to an affected application. This issue is fixed in versions 42.11.16, 43.8.1, 44.9.1, and 45.0.0-beta.6.

Published Oct 23, 2026 · Updated Oct 23, 2026 · Sources: CVE Program (cve.org) e CISA ADP, NIST National Vulnerability Database, GitHub Security Advisories · CNA: GitHub_M

Who exploits it and how urgent it is

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

No exploitation signal in the sources consulted so far.
How the score was calculated
  • EPSS 0.4% (30-day exploitation probability)+5
  • 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
Not confirmed
Not in CISA KEV — an absence of record, not proof it is unexploited.
EPSS FIRST
0.38%
ahead of 32% of scored CVEs · Oct 29, 2026
Affects
Electron
Electron
CVSS base
7.4
High · 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
None
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.

  • Npm Electron: fixed in version 45.0.0-beta.6 — github.com (GitHub Security Advisories)
  • Npm Electron: fixed in version 44.9.1 — github.com (GitHub Security Advisories)
  • Npm Electron: fixed in version 43.8.1 — github.com (GitHub Security Advisories)
  • Npm Electron: fixed in version 42.11.16 — github.com (GitHub Security Advisories)

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.

  1. Identify exposed assets running the affected vendor/product/version combinations (Electron Electron, Npm Electron).
  2. The attack is network-based and needs no privileges: restrict exposure (ACLs, VPN, WAF) until patched.
  3. Apply the fixed version or the patch documented under Remediation.
  4. Search available logs for exploit probes, errors and authentication anomalies.

Affected scope

Vendor, product and versions as the sources word them.

VendorProductVersionsStatusSource
Electron Electron version >= 45.0.0-alpha.1, < 45.0.0-beta.6version >= 44.0.0-alpha.1, < 44.9.1version >= 43.0.0-alpha.1, < 43.8.1version < 42.11.16 Vulnerable CVE Program (cve.org) e CISA ADP
Npm Electron ≥ 45.0.0-alpha.1 and < 45.0.0-beta.6≥ 44.0.0-alpha.1 and < 44.9.1≥ 43.0.0-alpha.1 and < 43.8.1< 42.11.16 Vulnerable GitHub Security Advisories

Attack characteristics

The CVSS vector, decoded. It describes the attack, not your exposure to it.

Attack vector
Network
Attack complexity
High
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

Every base score collected

Sources score independently and may disagree; each row says who scored it and under which version.

ScoreVersionSeverityExpl.ImpactScored by
7.4 CVSS 3.1 High 2.2 5.2 security-advisories@github.com via NIST National Vulnerability Database
7.4 CVSS 3.1 High — — GitHub, Inc. via GitHub Security Advisories
7.4 CVSS 3.1 High — — GitHub_M via CVE Program (cve.org) e CISA ADP
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N (score shown at the top: security-advisories@github.com)

Weakness MITRE

Weakness class according to MITRE’s CWE catalog.

CWE-299

Other CVEs with this weakness →

EPSS over time FIRST

Oct 24, 2026 → Oct 29, 2026 · 6 reading(s) · max 0.48%

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).
web/proxy/WAF logsnetwork IDS/IPS

Timeline

What happened to this CVE, newest first.

  • 2026
  • Fix documented
    Oct 23, 2026 · GitHub Security Advisories
  • Affected products added · npm/electron
    Oct 23, 2026 · GitHub Security Advisories
  • SSVC assessment updated
    Oct 23, 2026 · CVE Program (cve.org) e CISA ADP
  • Source status changed · Published → Awaiting Analysis
    Oct 23, 2026 · NIST National Vulnerability Database
  • Record published
    Oct 23, 2026
  • CVSS changed · 7.4
    Oct 23, 2026 · CVE Program (cve.org) e CISA ADP
  • Source status changed · → Published
    Oct 23, 2026 · CVE Program (cve.org) e CISA ADP
  • Record created in this database
    Oct 23, 2026 · CVE Program (cve.org) e CISA ADP
  • CVE published
    Oct 23, 2026 · GitHub_M

Source activity

Repeated readings are counted rather than listed.

  • 1× References added · Oct 23, 2026 – Oct 23, 2026
  • 1× Official description updated · Oct 23, 2026 – Oct 23, 2026

References

14 on the record

Elsewhere on this site

Electron
every CVE for this vendor
CWE-299
other pages naming this weakness

Related CVEs (same products)

  • CVE-2026-114124 Electron: Off-screen rendering on macOS trusts GPU-supplied frame geometry 8d
  • CVE-2026-114122 Electron: Frame subscription trusts GPU-supplied frame geometry 8d
  • CVE-2026-113800 Electron: HID and USB permission checks can be attributed to the wrong origin 8d
  • CVE-2026-114121 Electron: openExternal permission requests can be attributed to the wrong origin 8d
  • CVE-2026-113796 Electron: SameSite cookie restrictions are not applied to windows opened from links 8d
  • CVE-2026-113798 Electron: Pointer lock permission requests can be attributed to the wrong frame 8d

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-2026-115570 is "Electron: Mitigation for compromised eMudhra intermediate certificates", rated High. It affects Electron (Electron); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. CVSS 7.4 describes technical severity. EPSS 0.38% 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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