CVE-2026-124910 · Runtime
NO FIX YET · SEE WHAT TO DO
A mitigation bypass in Firefox's WebExtensions component weakens a protection meant to stop extension-based attacks. The sources do not say what an attacker can do beyond bypassing that mitigation.
first public Nov 10, 2026 · 1 source
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No product ranges from the sources yet.
Who cares browser-extensions, firefox
160 (or ESR below 153.7) are listed as affected in the sources.160153.7Mitigation bypass in the WebExtensions component. This vulnerability was fixed in Firefox 160 and Firefox ESR 153.7.
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