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VulnerabilityPublished Updated

CVE-2026-34986: buildah security update

Affects buildahSource GCVE Database

0

Not known to be exploited : upgrade to 2:1.41.8-3.el9_7 soon.

Data as of 27 Oct 2026, 00:16 UTC

Severity
High

Rated High by Threat Radar's AI analysis · No CVSS score from NVD or the CNA

Patch
Available – fixed in 2:1.41.8-3.el9_7

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 23 Apr 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: 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 26 Oct 2026.

What to do

Upgrade the AlmaLinux to 2:1.41.8-3.el9_7.

Affected software

ProductAffectedFixed in
AlmaLinux 9buildahAffected
  • <2:1.41.8-3.el9_7
Fixed in
  • 2:1.41.8-3.el9_7
AlmaLinux 9buildah-testsAffected
  • <2:1.41.8-3.el9_7
Fixed in
  • 2:1.41.8-3.el9_7

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

A security update for buildah is available and should be applied to affected systems. The fixed version is 2:1.41.8-3.el9_7. Users should follow the vendor's update instructions as detailed in the Red Hat advisory (RHSA-2026:10135). No additional mitigation steps are required beyond applying the official patch.

Description

A denial of service vulnerability (CVE-2026-34986) exists in the buildah package due to an issue in the Go JOSE library when processing crafted JSON Web Encryption (JWE) objects. This vulnerability can cause buildah to become unresponsive or crash when handling maliciously crafted JWE data. The issue has been addressed in buildah version 2:1.41.8-3.el9_7 and later.

References

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