Description

Use-after-free in the CSS Parsing and Computation component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.

INFO

Published Date :

2026-03-24T12:30:24.376Z

Last Modified :

2026-05-07T14:50:45.605Z

Source :

mozilla
AFFECTED PRODUCTS

The following products are affected by CVE-2026-4691 vulnerability.

Vendors Products
Mozilla
  • Firefox
  • Firefox Esr
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-4691.

URL Resource
https://bugzilla.mozilla.org/show_bug.cgi?id=2017512 cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2026-4691 cve-icon
https://www.cve.org/CVERecord?id=CVE-2026-4691 cve-icon
https://www.mozilla.org/security/advisories/mfsa2026-20/ cve-icon cve-icon
https://www.mozilla.org/security/advisories/mfsa2026-21/ cve-icon cve-icon
https://www.mozilla.org/security/advisories/mfsa2026-22/ cve-icon cve-icon
https://www.mozilla.org/security/advisories/mfsa2026-22/#CVE-2026-4691 cve-icon
https://www.mozilla.org/security/advisories/mfsa2026-23/ cve-icon cve-icon
https://www.mozilla.org/security/advisories/mfsa2026-24/ cve-icon cve-icon
https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4691 cve-icon
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CVSS Vulnerability Scoring System

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