Denial-of-Service Vulnerability in Firefox by Mozilla
CVE-2026-109768

Currently unrated

Key Information:

Vendor: Mozilla
Status: Firefox
Vendor: CVE Published:; 13 October 2026

What is CVE-2026-109768?

A denial-of-service vulnerability exists in the Site Reports component of Firefox, allowing potentially malicious actions that can disrupt service availability. This flaw was resolved in version 158 of Firefox, enhancing overall security and stabilizing user experiences. Users are advised to update to the latest version to mitigate the risk associated with this vulnerability.

Affected Version(s)

Firefox 158

References

https://bugzilla.mozilla.org/show_bug.cgi?id=2011368

https://www.mozilla.org/security/advisories/mfsa2026-106/

Download the Critical Vulnerability Management Cheat Sheet

Timeline

Vulnerability published
Oct 13, 2026
Vulnerability Reserved
Oct 13, 2026

Credit

Mozilla

CVE-2026-109768 Data

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