Denial-of-Service Vulnerability in Firefox Graphics Component
CVE-2026-100812

Currently unrated

Key Information:

Vendor: Mozilla
Status: Firefox
Vendor: CVE Published:; 29 September 2026

What is CVE-2026-100812?

This vulnerability affects the graphics component in Mozilla Firefox, allowing for a denial-of-service condition that may disrupt user access to the browser. The issue has been addressed in version 153.4 of Firefox ESR and version 157 of Firefox. Ensuring that your software is updated can mitigate the risks associated with this vulnerability.

Affected Version(s)

Firefox 153.4

Firefox 157

References

https://bugzilla.mozilla.org/show_bug.cgi?id=2068335

https://www.mozilla.org/security/advisories/mfsa2026-100/

https://www.mozilla.org/security/advisories/mfsa2026-97/

Download the Critical Vulnerability Management Cheat Sheet

Timeline

Vulnerability published
Sep 29, 2026
Vulnerability Reserved
Sep 26, 2026

Credit

Mozilla

CVE-2026-100812 Data

JSON