CVE-2026-109731: Vulnerability in Mozilla Firefox
Description
Incorrect boundary conditions in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
Affected software
Mozilla
Firefox
Mozilla
Thunderbird
pkg:github/mozilla/firefox-esrRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves incorrect boundary conditions in the Canvas2D graphics component of Mozilla Firefox. Such a flaw could potentially lead to unexpected behavior in rendering or memory handling within the browser's graphics subsystem. Mozilla has released fixes for this vulnerability in Firefox 158 and Firefox ESR 153.5.
Potential Impact
The vulnerability affects the graphics rendering component of Firefox, which could impact the stability or security of the browser when processing Canvas2D operations. Specific impact details or exploitation methods are not provided in the available data.
Mitigation Recommendations
Users should update to Firefox 158 or later, or Firefox ESR 153.5 or later, where this vulnerability has been fixed. Applying these official updates fully mitigates the issue.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mozilla
- Date Reserved
- 2026-10-13T00:29:37.765Z
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://www.mozilla.org/security/advisories/mfsa2026-106/","vendor":"Mozilla"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-108/","vendor":"Mozilla"}]
Threat ID: 6ace2c462cdf04f65661d527
Added to database: 10/13/2026, 13:04:06 UTC
Last enriched: 10/13/2026, 13:49:27 UTC
Last updated: 10/13/2026, 18:57:33 UTC
Views: 2
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