Red Hat Security Advisory: zero trust workload identity manager for Red Hat OpenShift 1.1.3
Affects Red HatSource GCVE Database
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, 06:44 UTC
Thin evidence
One scorer or none| CISA-ADP | CVSS 3.1 | 6.8 |
|---|
- 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:NExploitation evidence
Disclosed: evidence found.
CVE published 21 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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
| Product | Affected | Fixed in |
|---|---|---|
| Go standard librarycrypto/x509 | Affected
| Fixed in
|
| Go standard librarycrypto/x509 | Affected
| Fixed in
|
Gocrypto/x509pkg:golang/crypto/x509Other threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Users should ensure all previously released errata relevant to their systems are applied before installing the Zero Trust Workload Identity Manager operator. For operator upgrades, if the approval policy is set to 'Automatic' (default), upgrades will be applied automatically when new versions are available. If set to 'Manual', users must approve upgrades manually. Monitoring Red Hat advisories for future patches is recommended.
Description
A vulnerability exists in the Go crypto/x509 package used by the Zero Trust Workload Identity Manager (ZTWIM) for Red Hat OpenShift. The certificate verification process does not properly block trust in intermediate certificates associated with compromised Certificate Authorities (CAs). This flaw allows remote attackers to impersonate legitimate servers by presenting certificates signed by these untrusted intermediate authorities, enabling man-in-the-middle attacks. The vulnerability affects Go-based clients and servers relying on standard certificate verification. Exploitation requires specific network positioning and attacker-controlled certificates. Red Hat rates this vulnerability as Important and has not yet released a fix. Mitigation involves applying all relevant errata and managing operator upgrade policies.
References
- access.redhat.com/errata/RHSA-2026:94570 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-111943 (opens in a new tab)
- access.redhat.com/security/updates/classification/ (opens in a new tab)
- docs.redhat.com/en/documentation/openshift_container_platform/4.22/html/security_and_compliance/zero-trust-workload-identity-manager (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_94570.json (opens in a new tab)