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CVE-2026-34769

32
FAUCET Score

CVE-2026-34769 is a high-severity vulnerability in the Electron framework, affecting versions prior to 38.8.6, 39.8.0, 40.7.0, and 41.0.0-beta.8, specifically impacting applications that process untrusted input for webPreferences. This flaw allows an attacker to inject arbitrary command-line switches, potentially disabling renderer sandboxing or web security controls. Rated with a CVSS score of 7.7 (High), exploitation requires local access, high attack complexity, and user interaction, with potential for high impact on confidentiality, integrity, and availability. While this CVE is on an "Active" hot list, there is currently no public exploit code available, nor is it listed in CISA's Known Exploited Vulnerabilities catalog, though it has garnered limited community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
< 38.8.6CPE matchmatch criteria
cpe:2.3:a:electronjs:electron:*:*:*:*:*:node.js:*:*
>= 39.0.0, < 39.8.0CPE matchmatch criteria
cpe:2.3:a:electronjs:electron:*:*:*:*:*:node.js:*:*
>= 40.0.0, < 40.7.0CPE matchmatch criteria
cpe:2.3:a:electronjs:electron:*:*:*:*:*:node.js:*:*
41.0.0CPE matchmatch criteria
cpe:2.3:a:electronjs:electron:41.0.0:alpha1:*:*:*:node.js:*:*
41.0.0CPE matchmatch criteria
cpe:2.3:a:electronjs:electron:41.0.0:alpha2:*:*:*:node.js:*:*

CVSS Data

CVSS version used by this source: 3.1

7.7HIGH

CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.0
Impact Score
6.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.29%
Probability of exploitation in next 30 days
EPSS Percentile
21.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0029 is in the 20th percentile among its peer group of 11,616 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (5)

npmpatch availablevia ghsa
Product: electronFixed in: 38.8.6
npmpatch availablevia ghsa
Product: electronFixed in: 39.8.0
npmpatch availablevia ghsa
Product: electronFixed in: 40.7.0
npmpatch availablevia ghsa
Product: electronFixed in: 41.0.0-beta.8
github_advisoryvendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

npmGHSA-9wfr-w7mm-pc7fhigh

Electron: Renderer command-line switch injection via undocumented commandLineSwitches webPreference

Apr 3, 2026

References

access.redhat.com / security/cve/CVE-2026-34769
bugzilla.redhat.com / show_bug.cgi
security.access.redhat.com / data/csaf/v2/vex/2026/cve-2026-34769.json
github.com / electron/electron/security/advisories/GHSA-9wfr-w7mm-pc7f
Vendor Advisory