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CVE-2026-111943VulnerabilityPublished

Red Hat Security Advisory: zero trust workload identity manager for Red Hat OpenShift 1.1.3

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 3 Nov 2026, 11:32 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 3 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 advises ensuring all previously released errata relevant to your system are applied before installing or upgrading the Zero Trust Workload Identity Manager operator. If the operator's upgrade approval policy is set to 'Automatic' (default), upgrades will occur automatically when new versions are available. If set to 'Manual', administrators must approve upgrades manually. Users should follow the detailed mitigation procedures in the Red Hat security bulletin and monitor Red Hat advisories for any forthcoming fixes. No direct patch is currently provided for this vulnerability in the advisory.

Description

A vulnerability exists in Go's crypto/x509 package used by the Zero Trust Workload Identity Manager (ZTWIM) for Red Hat OpenShift. The certificate verification process fails to block trust in intermediate certificates associated with compromised Certificate Authorities (CAs). This flaw allows a remote attacker to impersonate legitimate servers by presenting certificates signed by these untrusted intermediates, enabling man-in-the-middle (MitM) attacks that compromise confidentiality and integrity of secure communications. Exploitation requires specific network positioning and attacker-controlled certificates. The vulnerability is rated Important by Red Hat and affects Go-based TLS clients and servers relying on standard certificate verification.

References

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