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CVE details

CVE-2026-4691

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.

Score
9.8 critical
Published
2026-03-24
Links
NVD · cve.org

Affected ports (0)

No port is within the affected range.

VuXML