CVE-2025-8043

Incorrect URL truncation

State: Published
Severity: 9.8 Critical
Published: Jul 22, 2025
Updated: Apr 13, 2026
Reserved: Jul 22, 2025

Description

Focus incorrectly truncated URLs towards the beginning instead of around the origin. This vulnerability was fixed in Firefox 141.

Scores

CVSS	Score	Vector	Source
3.1	9.8 Critical	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	CISA-ADP

Weaknesses

CWE-451 User Interface (UI) Misrepresentation of Critical Information

Affected Products

Product	Versions
FirefoxMozilla	141 and laterNot affected

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1970209
https://www.mozilla.org/security/advisories/mfsa2025-56/

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.