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VulnerabilityPublished Updated

CVE-2026-111943: ignition security update

Affects ignitionSource GCVE Database

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Authoritative record:CVE-2026-111943· Medium 6.8

Not known to be exploited · CVSS 6.8 Medium : upgrade to 2.26.0-3.el10_2.4 when convenient.

Data as of 30 Oct 2026, 14:23 UTC

CVSS 3.1 base score
6.8Medium
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CISA-ADPCVSS 3.16.8
Patch
Available – fixed in 2.26.0-3.el10_2.4
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 21 Oct 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 30 Oct 2026.

What to do

Upgrade the AlmaLinux to 2.26.0-3.el10_2.4.

Affected software

ProductAffectedFixed in
AlmaLinux 10ignitionAffected
  • <2.26.0-3.el10_2.4
Fixed in
  • 2.26.0-3.el10_2.4
AlmaLinux 10ignition-edgeAffected
  • <2.26.0-3.el10_2.4
Fixed in
  • 2.26.0-3.el10_2.4
AlmaLinux 10ignition-grubAffected
  • <2.26.0-3.el10_2.4
Fixed in
  • 2.26.0-3.el10_2.4
AlmaLinux 10ignition-validateAffected
  • <2.26.0-3.el10_2.4
Fixed in
  • 2.26.0-3.el10_2.4

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 fixing this vulnerability is available in Ignition version 2.26.0-3.el10_2.4. Users should apply this update as provided by Red Hat. Refer to the Red Hat advisory (RHSA-2026:91720) and the update instructions at https://access.redhat.com/articles/11258 for detailed remediation guidance.

Description

Ignition is a utility used during system initialization to configure disks, files, and users based on a configuration source. A security vulnerability (CVE-2026-111943) in the golang crypto/x509 package allows man-in-the-middle attacks via untrusted intermediate certificates. This vulnerability affects Ignition versions prior to 2.26.0-3.el10_2.4. A security update fixing this issue is available from Red Hat.

References

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