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VulnerabilityPublished Updated

CVE-2026-111943: yggdrasil security update

Affects yggdrasilSource GCVE Database

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Authoritative record:CVE-2026-111943· Medium

Not known to be exploited : upgrade to 0.4.9.2-1.el10_2.4 when convenient.

Data as of 29 Oct 2026, 14:41 UTC

Severity
Medium

Rated Medium by Threat Radar's AI analysis · CVSS not yet scored by NVD

EPSS
0.2% chance of exploitation in 30 days – higher than 22% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 0.4.9.2-1.el10_2.4

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 29 Oct 2026.

What to do

Upgrade the AlmaLinux to 0.4.9.2-1.el10_2.4.

Affected software

ProductAffectedFixed in
AlmaLinux 10yggdrasilAffected
  • <0.4.9.2-1.el10_2.4
Fixed in
  • 0.4.9.2-1.el10_2.4
AlmaLinux 10yggdrasil-develAffected
  • <0.4.9.2-1.el10_2.4
Fixed in
  • 0.4.9.2-1.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 is available and should be applied promptly. The fixed version is 0.4.9.2-1.el10_2.4. Refer to the Red Hat advisory RHSA-2026:91138 and the update instructions at https://access.redhat.com/articles/11258 for detailed remediation steps. No additional mitigation actions are indicated beyond applying the official patch.

Description

yggdrasil is a system daemon that subscribes to MQTT topics and routes data to child worker processes via D-Bus. A security update addresses multiple vulnerabilities including a man-in-the-middle attack risk due to untrusted intermediate certificates in the crypto/x509 package (CVE-2026-111943). The update fixes this and other denial of service issues in related Golang components. The vulnerability affects versions prior to 0.4.9.2-1.el10_2.4 and is rated as important by Red Hat.

References

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