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VulnerabilityPublished

CVE-2026-102675: Electron · File and HTTP protocol handlers allow cross-origin reads without corsEnabled

Affects electronSource GCVE Database

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Mentioned vulnerabilities

Authoritative record:CVE-2026-102675· High 7.4

Not known to be exploited · CVSS 7.4 High : upgrade to 44.0.0-beta.5 soon.

Data as of 12 Nov 2026, 23:24 UTC

CVSS 3.1 base score
7.4High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 11% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 44.0.0-beta.5
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. Weaponized: 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 13 Nov 2026.

What to do

Upgrade electron to 44.0.0-beta.5.

Affected software

ProductAffectedFixed in
npmelectronAffected
  • >=44.0.0-alpha.1 <44.0.0-beta.5
Fixed in
  • 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

A fix is available in Electron versions 41.10.6, 42.9.2, 43.4.1, and 44.0.0-beta.5. Users should upgrade to one of these versions or later. As a workaround, set corsEnabled to true on the custom scheme or avoid loading untrusted content in windows that can access the scheme. These mitigations prevent cross-origin reads.

Description

Electron versions prior to 41.10.6, between 42.0.0-alpha.1 and 42.9.2, between 43.0.0-alpha.1 and 43.4.1, and between 44.0.0-alpha.1 and 44.0.0-beta.5 have a vulnerability where file and HTTP protocol handlers allow cross-origin reads without the corsEnabled flag. This affects apps that register custom schemes with supportFetchAPI enabled but corsEnabled disabled and load untrusted content. The vulnerability allows cross-origin reading of responses, completing a previous fix (CVE-2026-70604). Fixed versions include 41.10.6, 42.9.2, 43.4.1, and 44.0.0-beta.5. Setting corsEnabled to true or avoiding loading untrusted content mitigates the issue.

References

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