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High severity8.8NVD Advisory· Published Sep 29, 2026· Updated Sep 29, 2026

CVE-2026-100815

CVE-2026-100815

Description

Use-after-free in the CSS Parsing and Computation component. This vulnerability was fixed in Firefox ESR 153.4 and Firefox 157.

Affected products

2

Mozilla Corporation/Firefox Esrllm-fuzzy
Range: >=153.4
Mozilla Corporation/Firefoxllm-fuzzy
Range: >=157

Patches

Vulnerability mechanics

References

3

News mentions

0

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