CVE-2026-92017

Published: Sep 15, 2026Modified: Sep 16, 2026

8.8

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploitability: 2.8 / Impact: 5.9

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

Description

Privilege escalation in the DOM: Service Workers component. This vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 140.16.

Related CWEs

CWE-269

Improper Privilege Management

The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.

References (7)

https://bugzilla.mozilla.org/show_bug.cgi?id=2061777

Source: security@mozilla.org

https://www.mozilla.org/security/advisories/mfsa2026-90/

Source: security@mozilla.org

https://www.mozilla.org/security/advisories/mfsa2026-91/

Source: security@mozilla.org

https://www.mozilla.org/security/advisories/mfsa2026-92/

Source: security@mozilla.org

https://www.mozilla.org/security/advisories/mfsa2026-93/

Source: security@mozilla.org

https://www.mozilla.org/security/advisories/mfsa2026-94/

Source: security@mozilla.org

https://www.mozilla.org/security/advisories/mfsa2026-95/

Source: security@mozilla.org

Timeline

No history available yet.