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VulnerabilityPublished

CVE-2026-102675: electron · Origin Validation Error

Affects electronSource GCVE Database

0

Mentioned vulnerabilities

Not known to be exploited · CVSS 7.4 High · fixed in 44.0.0-beta.5 : patch electron soon.

Data as of 27 Oct 2026, 19:30 UTC

CVSS 3.1 base score
7.4High
How severe the flaw is on the 0–10 CVSS scale.
Patch
Available – fixed in 44.0.0-beta.5, 43.4.1, 42.9.2 +1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 29 Sep 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Upgrade electron/electron to 44.0.0-beta.5, 43.4.1, 42.9.2 or 41.10.6.

Affected software

ProductAffectedFixed in
GitHubelectron/electronpkg:github/electron/electronOther threatsAffected
  • <41.10.6
  • >=42.0.0-alpha.1 <42.9.2
  • >=43.0.0-alpha.1 <43.4.1
  • >=44.0.0-alpha.1 <44.0.0-beta.5
Fixed in
  • 41.10.6
  • 42.9.2
  • 43.4.1
  • 44.0.0-beta.5

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Upgrade Electron to version 41.10.6, 42.9.2, 43.4.1, or 44.0.0-beta.5 or later, where this vulnerability is fixed. Applications should avoid exposing custom schemes with supportFetchAPI enabled and corsEnabled disabled when loading untrusted content in the same session. No additional mitigation is required if the application does not expose such schemes or if corsEnabled is enabled as intended.

Description

CVE-2026-102675 is an origin validation error in the Electron framework affecting certain versions prior to 41.10.6, 42.9.2, 43.4.1, and 44.0.0-beta.5. The vulnerability allows responses served through custom protocols with supportFetchAPI enabled but corsEnabled disabled to remain script-readable across origins, potentially exposing sensitive data. This issue completes the remediation of a previous vulnerability (CVE-2026-70604). Applications are only affected if they expose such custom schemes and load untrusted content in the same session. The issue is fixed in the specified versions.

References

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