DevTools Vulnerability in Firefox by Mozilla
CVE-2026-100810

Currently unrated

Key Information:

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

What is CVE-2026-100810?

A security issue was discovered in the DevTools component of Firefox. This vulnerability, identified and reported as a critical concern, has been addressed in the latest version, Firefox 157. Users are encouraged to update their browsers to ensure protection against potential attacks exploiting this weakness.

Affected Version(s)

Firefox 157

References

https://bugzilla.mozilla.org/show_bug.cgi?id=2064034

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

Finn Westendorf

CVE-2026-100810 Data

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