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CVE-2026-26080VulnerabilityPublished Updated

Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

Affects Red HatSource GCVE Database

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Not known to be exploited.

Data as of 5 Nov 2026, 23:03 UTC

Severity
Medium

Rated by Threat Radar · No CVSS score from NVD or the CNA

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 16 Jul 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 5 Nov 2026.

What to do

AI-suggested

No mitigation is required for Red Hat products as they do not ship affected versions of HAProxy. Users should ensure they are running supported versions and apply updates if using vulnerable HAProxy releases outside Red Hat products.

Description

A vulnerability was identified in HAProxy's QUIC frame parser where malformed, truncated variable-length integers (varints) can cause the parser to enter an infinite loop or crash, resulting in denial of service. This flaw affects HAProxy versions 3.2.0 through 3.2.11 and 3.3.0 through 3.3.2. However, no Red Hat product ships these affected versions, so Red Hat products are not impacted. No mitigation is required for Red Hat users.

References

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