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VulnerabilityPublished Updated

CVE-2026-113800: electron · Origin Validation Error

Affects electronSource CVE Database V5

0

Not known to be exploited · CVSS 5.4 Medium · fixed in 45.0.0-alpha.5 : update electron when convenient.

Data as of 26 Oct 2026, 10:12 UTC

CVSS 3.1 base score
5.4Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 15% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CISA SSVC
Exploitation
No evidence of active exploitation and no public proof of concept
Automatable
Attackers cannot reliably automate steps 1–4 of the kill chain
Technical impact
Limited control over the software or limited information exposure

CISA SSVC assessment, 2026-10-23.

Patch
Available – fixed in 45.0.0-alpha.5, 44.3.0, 43.7.0 +1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 21 Oct 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 to 45.0.0-alpha.5, 44.3.0, 43.7.0 or 42.11.3.

Affected software

ProductAffectedFixed in
electronelectronAffected
  • >=45.0.0-alpha.1 <45.0.0-alpha.5
Fixed in
  • 45.0.0-alpha.5
electronelectronAffected
  • >=44.0.0-alpha.1 <44.3.0
Fixed in
  • 44.3.0
electronelectronAffected
  • >=43.0.0-alpha.1 <43.7.0
Fixed in
  • 43.7.0
electronelectronAffected
  • <42.11.3
Fixed in
  • 42.11.3

AI-suggested

Update Electron to one of the fixed versions: 42.11.3, 43.7.0, 44.3.0, or 45.0.0-alpha.5. This patch corrects the origin validation logic for HID and USB permission checks from iframes. No other mitigation is indicated by the vendor advisory.

Description

CVE-2026-113800 is an origin validation error in the Electron framework affecting versions prior to 42.11.3, 43.7.0, 44.3.0, and 45.0.0-alpha.5. The flaw causes permission checks for HID and USB devices made from an iframe to incorrectly use the top-level frame's origin instead of the requesting iframe's origin. This can allow a cross-origin untrusted iframe to gain device access intended only for the top-level page. The issue is fixed in the specified versions.

References

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