Firefox Sandbox Escape via WebRender (148, ESR 115.33)
CVE-2026-2761 Published on February 24, 2026
Sandbox escape in the Graphics: WebRender component
Sandbox escape in the Graphics: WebRender component. This vulnerability affects Firefox < 148, Firefox ESR < 115.33, and Firefox ESR < 140.8.
Products Associated with CVE-2026-2761
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Affected Versions
Mozilla Firefox:- Version unspecified and below 148 is affected.
- Version unspecified and below 115.33 is affected.
- Version unspecified and below 140.8 is affected.
- Version unspecified and below 148 is affected.
- Version unspecified and below 140.8 is affected.