CVE-2026-124858 PUBLISHED

Use-after-free in the DOM: HTML Parser component

Assigner: mozilla
Reserved: 09.11.2026 Published: 10.11.2026 Updated: 10.11.2026

Use-after-free in the DOM: HTML Parser component. This vulnerability was fixed in Firefox 160, Firefox ESR 115.45, and Firefox ESR 153.7.

Product Status

Vendor Mozilla
Product Firefox
Versions
  • unaffected from 115.45 to 115.* (incl.)
  • unaffected from 153.7 to 153.* (incl.)
  • unaffected from 160 to * (incl.)

Credits

  • Amy Burnett of OpenAI

References