Same-origin policy bypass in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 142, Firefox ESR 115.27, Firefox ESR 128.14, Firefox ESR 140.2, Thunderbird 142, Thunderbird 128.14, and Thunderbird 140.2.

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-4277-1 firefox-esr security update
Debian DLA Debian DLA DLA-4279-1 thunderbird security update
Debian DSA Debian DSA DSA-5980-1 firefox-esr security update
Debian DSA Debian DSA DSA-5984-1 thunderbird security update
EUVD EUVD EUVD-2025-25245 'Same-origin policy bypass in the Graphics: Canvas2D component.' This vulnerability affects Firefox < 142, Firefox ESR < 115.27, Firefox ESR < 128.14, Firefox ESR < 140.2, Thunderbird < 142, Thunderbird < 128.14, and Thunderbird < 140.2.
Ubuntu USN Ubuntu USN USN-7991-1 Thunderbird vulnerabilities
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Mon, 13 Apr 2026 15:00:00 +0000

Type Values Removed Values Added
Description Same-origin policy bypass in the Graphics: Canvas2D component. This vulnerability affects Firefox < 142, Firefox ESR < 115.27, Firefox ESR < 128.14, Firefox ESR < 140.2, Thunderbird < 142, Thunderbird < 128.14, and Thunderbird < 140.2. Same-origin policy bypass in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 142, Firefox ESR 115.27, Firefox ESR 128.14, Firefox ESR 140.2, Thunderbird 142, Thunderbird 128.14, and Thunderbird 140.2.

Mon, 03 Nov 2025 19:30:00 +0000


Thu, 30 Oct 2025 16:00:00 +0000

Type Values Removed Values Added
Description 'Same-origin policy bypass in the Graphics: Canvas2D component.' This vulnerability affects Firefox < 142, Firefox ESR < 115.27, Firefox ESR < 128.14, Firefox ESR < 140.2, Thunderbird < 142, Thunderbird < 128.14, and Thunderbird < 140.2. Same-origin policy bypass in the Graphics: Canvas2D component. This vulnerability affects Firefox < 142, Firefox ESR < 115.27, Firefox ESR < 128.14, Firefox ESR < 140.2, Thunderbird < 142, Thunderbird < 128.14, and Thunderbird < 140.2.
Title thunderbird: firefox: Same-origin policy bypass in the Graphics: Canvas2D component Same-origin policy bypass in the Graphics: Canvas2D component

Fri, 22 Aug 2025 00:15:00 +0000

Type Values Removed Values Added
Title thunderbird: firefox: Same-origin policy bypass in the Graphics: Canvas2D component
Weaknesses CWE-200
References
Metrics threat_severity

None

threat_severity

Important


Thu, 21 Aug 2025 18:45:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*
cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:-:*:*:*
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:esr:*:*:*

Thu, 21 Aug 2025 12:45:00 +0000

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

Wed, 20 Aug 2025 16:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-346
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N'}

ssvc

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


Tue, 19 Aug 2025 20:45:00 +0000

Type Values Removed Values Added
Description 'Same-origin policy bypass in the Graphics: Canvas2D component.' This vulnerability affects Firefox < 142, Firefox ESR < 115.27, Firefox ESR < 128.14, Firefox ESR < 140.2, Thunderbird < 142, Thunderbird < 128.14, and Thunderbird < 140.2.
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published:

Updated: 2026-04-13T14:25:49.457Z

Reserved: 2025-08-19T15:55:39.806Z

Link: CVE-2025-9180

cve-icon Vulnrichment

Updated: 2025-08-20T14:05:55.611Z

cve-icon NVD

Status : Modified

Published: 2025-08-19T21:15:30.390

Modified: 2026-04-13T15:17:13.590

Link: CVE-2025-9180

cve-icon Redhat

Severity : Important

Publid Date: 2025-08-19T20:33:54Z

Links: CVE-2025-9180 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2025-08-21T12:31:47Z

Weaknesses