CVE-2026-118011 PUBLISHED

Frame poisoning in the CSS Parsing and Computation component

Assigner: mozilla
Reserved: 27.10.2026 Published: 27.10.2026 Updated: 27.10.2026

Frame poisoning in the CSS Parsing and Computation component. This vulnerability was fixed in Firefox 159 and Thunderbird 159.

Product Status

Vendor Mozilla
Product Firefox
Versions
  • unaffected from 159 to * (incl.)
Vendor Mozilla
Product Thunderbird
Versions
  • unaffected from 159 to * (incl.)

Credits

  • OpenAI Codex Security (kylebot)

References