A AegiFlow
CRITICALCVSS 9.6

CVE-2026-100804

CVE-2026-100804 updated by NVD

Modified
2026-10-21
Sources
nvd

Summary

Sandbox escape due to use-after-free in the Preferences: Backend component. This vulnerability was fixed in Thunderbird 157 and Firefox 157.

References

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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