CVEvulnerability

CVE-2026-8958

8.6 HIGH Published 2026-05-19 Modified 2026-10-14 Official page ↗
Status
Analyzed
Published
2026-05-19
Last modified
2026-10-14
Assigner
[email protected]
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
8.6 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Weaknesses
CWE-668, CWE-693

Description

Information disclosure, sandbox escape in the Security: Process Sandboxing component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.

Affected configurations

• mozilla firefox (< 140.11.0) • mozilla firefox (< 151.0.0) • mozilla thunderbird (< 140.11) • mozilla thunderbird (< 151.0.0)

Related

Weakness · CWE (2)

  • CWE-668 Exposure of Resource to Wrong Sphere weakness
  • CWE-693 Protection Mechanism Failure weakness

References