CVE-2026-6760

Mitigation bypass in the Networking: Cookies component. This vulnerability was fixed in Firefox 150 and Thunderbird 150.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://bugzilla.mozilla.org/show_bug.cgi?id=2016923	Permissions Required
https://www.mozilla.org/security/advisories/mfsa2026-30/	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2026-33/	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:mozilla:firefox:::::-:::*
	cpe:2.3:a:mozilla:thunderbird:::::-:::*

History

26 Oct 2026, 00:10

Type	Values Removed	Values Added
Summary		(es) Elusión de mitigación en el componente Redes: Cookies. Esta vulnerabilidad fue corregida en Firefox 150 y Thunderbird 150.

Information

Published : 2026-04-21 13:16

Updated : 2026-10-26 00:10

NVD link : CVE-2026-6760

Mitre link : CVE-2026-6760

CVE.ORG link : CVE-2026-6760

JSON object : View

Products Affected

mozilla

firefox
thunderbird

CWE

CWE-288

Authentication Bypass Using an Alternate Path or Channel

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