CRITICALCVSS 9.6

CVE-2026-12294

CVE-2026-12294 updated by NVD

Modified: 2026-10-28
Sources: nvd

Summary

Sandbox escape in the DOM: Workers component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.

References

https://nvd.nist.gov/vuln/detail/CVE-2026-12294

Includes data from the National Vulnerability Database (NIST). NVD data is in the public domain; this page is not endorsed by NIST.

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