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9.8 Critical

CVE-2026-100810 Other issue in the DevTools component

Description

Other issue in the DevTools component. This vulnerability was fixed in Thunderbird 157 and Firefox 157.

Affected products and versions

Product	Affected versions	Fixed in
Firefox 157	earliest → < 157	157
Thunderbird 157	earliest → < 157	157

References

bugzilla.mozilla.org bugzilla.mozilla.org
www.mozilla.org www.mozilla.org
www.mozilla.org www.mozilla.org

Timeline

Published September 29, 2026
Last modified October 1, 2026

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