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mozjs52

mozjs38

mozjs68

mozjs102

mozjs78

mozjs91

thunderbird

mozjs115

CVE-2026-92013 is a privilege escalation vulnerability in the Graphics: CanvasWebGL component of mozjs52. It arises from incorrect boundary conditions and was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3. The vulnerability has a high impact and a CVSS score of 8.8. Multiple specific vulnerable versions are identified. No known exploits in the wild have been reported.

This vulnerability, identified as CVE-2026-92013, involves privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component of mozjs52. The issue was addressed and fixed in Firefox 156 and corresponding ESR and Thunderbird versions. The CVSS v3.1 score is 8.8, indicating a high severity with network attack vector, low attack complexity, no privileges required, user interaction required, and high impact on confidentiality, integrity, and availability. The vendor advisory from Mozilla confirms the fix and provides references to the bug report 2058078. Numerous specific vulnerable versions are listed, reflecting affected builds primarily in Ubuntu distributions.

Detailed information about Mozjs52: Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component. (CVE-2026-92013) affecting

Mozjs52: Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component. (CVE-2026-92013) - Live Threat Intelligence - Threat Radar | OffSeq.com

Mozjs52: Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component. (CVE-2026-92013)

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