All errata/sisyphus/ALT-PU-2026-7760-2
ALT-PU-2026-7760-2

Package update firefox in branch sisyphus

Version150.0.3-alt1
Task#418119
Published2026-05-14
Max severityCRITICAL
Severity:

Closed issues (5)

CVE-2026-8388
MEDIUM6.5

Incorrect boundary conditions in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 150.0.3, Firefox ESR 115.36, Firefox ESR 140.11, and Thunderbird 140.11.

Published: 2026-05-12Modified: 2026-06-17
CVSS 3.xMEDIUM 6.5
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
References
CVE-2026-8391
MEDIUM5.3

Other issue in the JavaScript Engine component. This vulnerability was fixed in Firefox 150.0.3, Firefox ESR 115.36, Firefox ESR 140.11, and Thunderbird 140.11.

Published: 2026-05-12Modified: 2026-06-17
CVSS 3.xMEDIUM 5.3
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
References
CVE-2026-8401
CRITICAL9.8

Sandbox escape in the Profile Backup component. This vulnerability was fixed in Firefox 150.0.3, Firefox ESR 115.36, Firefox ESR 140.11, and Thunderbird 140.11.

Published: 2026-05-12Modified: 2026-06-17
CVSS 3.xCRITICAL 9.8
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References