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

Tue, 13 Oct 2026 17:30:00 +0000

Type Values Removed Values Added
First Time appeared Mozilla thunderbird
CPEs cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
Vendors & Products Mozilla thunderbird

Fri, 02 Oct 2026 09:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 01 Oct 2026 20:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-200
CWE-285

Thu, 01 Oct 2026 16:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-346
Metrics cvssV3_1

{'score': 4.7, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N'}


Wed, 30 Sep 2026 21:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-200
CWE-285

Wed, 30 Sep 2026 17:45:00 +0000

Type Values Removed Values Added
Description Site isolation issue in the Panning and Zooming component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17. Site isolation issue in the Panning and Zooming component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17.
References

Wed, 30 Sep 2026 17:30:00 +0000

Type Values Removed Values Added
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. Site isolation issue in the Panning and Zooming component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17.
References

Wed, 30 Sep 2026 02:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-200

Tue, 29 Sep 2026 17:15:00 +0000

Type Values Removed Values Added
First Time appeared Mozilla
Mozilla firefox
Vendors & Products Mozilla
Mozilla firefox

Tue, 29 Sep 2026 16:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-200

Tue, 29 Sep 2026 13:15:00 +0000

Type Values Removed Values Added
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.
Title Site isolation issue in the Panning and Zooming component
References

cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published: 2026-09-29T12:36:30.318Z

Updated: 2026-10-01T15:55:15.347Z

Reserved: 2026-09-26T19:18:35.743Z

Link: CVE-2026-100821

cve-icon Vulnrichment

Updated: 2026-10-01T15:55:05.223Z

cve-icon NVD

Status : Analyzed

Published: 2026-09-29T13:17:47.400

Modified: 2026-10-13T17:13:58.030

Link: CVE-2026-100821

cve-icon Redhat

No data.