CVE-2026-4691 PUBLISHED

Use-after-free in the CSS Parsing and Computation component

Assigner: mozilla
Reserved: 23.03.2026 Published: 24.03.2026 Updated: 24.03.2026

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

Product Status

Vendor Mozilla
Product Firefox
Versions
  • affected from unspecified to 149 (excl.)
Vendor Mozilla
Product Firefox ESR
Versions
  • affected from unspecified to 115.34 (excl.)
Vendor Mozilla
Product Firefox ESR
Versions
  • affected from unspecified to 140.9 (excl.)

Credits

  • Fabius Artrel

References