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High8.2Red Hat Linux

CVE-2026-80312: Red Hat Authentication bypass via unhandled authentication failure

This Red Hat advisory covers CVE-2026-80312.

Open the Red Hat advisory

Key facts

Vendor rating
High, CVSS 8.2
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N · base score 8.2, scored by apacheAttack vector: network. Attack complexity: low. Privileges required: none. User interaction: none. Scope: unchanged. Confidentiality impact: high. Integrity impact: low. Availability impact: none.
Weakness
  • CWE-287 Improper Authentication
EPSS
0.57% chance of exploitation in the next 30 days (47th percentile). FIRST EPSS, .
CISA SSVC
Exploitation: none observed. Automatable: yes. Technical impact: partial. CISA, .
CISA KEV
Not listed (catalogue checked )
Versions named
< 4.11.0; < 4.18.5; < 4.19.0 and 1 more below
Fixed in
4.23.0, 4.18, 4.18.5 and 2 more below
Source published
Listed by VulniPulse

Compiled by VulniPulse from the linked sources. How records are collected and checked.

Related products & platforms

Red Hat LinuxUnclassified

Description

Authentication bypass via unhandled authentication failure. Red Hat rates this important (CVSS 8.2).

Weakness: CWE-303.

Text from the source record.

Versions named by the source
  • < 4.11.0
  • < 4.18.5
  • < 4.19.0
  • < 4.22.1

Official advisory · high-confidence parse· fetched ·verify at source

How to fix CVE-2026-80312

Upgrade to a fixed release named by Red Hat:

  • 4.23.0
  • 4.18
  • 4.18.5
  • 4.22
  • 4.22.1

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