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CVE-2026-111943VulnerabilityPublished

Red Hat Security Advisory: Updated Red Hat OpenStack Platform 17.1 director Operator container images

Affects Red HatSource GCVE Database

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Authoritative record:CVE-2026-111943· Medium 6.8

Not known to be exploited · CVSS 6.8 Medium : upgrade Red Hat x509 to 1.27.3 or 1.26.10 when convenient.

Data as of 4 Nov 2026, 16:32 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 1.27.3, 1.26.10
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 4 Nov 2026.

What to do

Upgrade crypto/x509 to 1.27.3 or 1.26.10.

Affected software

ProductAffectedFixed in
Go standard librarycrypto/x509Affected
  • >=1.27.0-0 <1.27.3
Fixed in
  • 1.27.3
Go standard librarycrypto/x509Affected
  • <1.26.10
Fixed in
  • 1.26.10
Gocrypto/x509pkg:golang/crypto/x509Other threatsAffected
  • <1.26.10
  • >=1.27.0-0 <1.27.3
Fixed in
  • 1.26.10
  • 1.27.3

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

AI-suggested

Red Hat has released updated container images for the OpenStack Platform 17.1 director Operator that address this vulnerability. Users should update to these fixed container images by pulling them from the Red Hat container registry using 'podman pull'. No additional mitigation is required once updated images are deployed.

Description

A vulnerability in the Go crypto/x509 package used by Red Hat OpenStack Platform 17.1 director Operator container images allows man-in-the-middle attacks via untrusted intermediate certificates. The certificate verification process fails to block trust in intermediate certificates associated with compromised Certificate Authorities, enabling attackers to impersonate legitimate servers during secure connections. Updated container images have been released to address this issue.

References

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