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Red Hat CVE-2026-8958

| EUVD-2026-30907 HIGH
Exposure of Resource to Wrong Sphere (CWE-668)
2026-05-19 mozilla GHSA-gm4c-ph85-6chj
Information Disclosure Red Hat Mozilla Suse
8.6
CVSS 3.1
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CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
None
Availability
None

Lifecycle Timeline

1
CVE Published
May 19, 2026 - 12:29 nvd
UNKNOWN (no severity yet)

DescriptionNVD

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

Analysis

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

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CVE-2026-8958 vulnerability details – vuln.today
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