CVE-2026-100821

UNKNOWN

Description

Site isolation issue in the Panning and Zooming component. This vulnerability was fixed in Firefox ESR 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17.

Timeline

Published:September 29th, 2026 1:17 PM

Last modified:September 29th, 2026 9:27 PM

CVSS Scoring

No CVSS v3 score available

References & Reports

Advisories, patches, and third-party reports

https://bugzilla.mozilla.org/show_bug.cgi?id=2071784
https://www.mozilla.org/security/advisories/mfsa2026-100/
https://www.mozilla.org/security/advisories/mfsa2026-97/
https://www.mozilla.org/security/advisories/mfsa2026-98/
https://www.mozilla.org/security/advisories/mfsa2026-99/

Source: NIST NVD · Data may lag official sources by up to one minute