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CVE-2026-33818VulnerabilityPublished Updated

Red Hat Bug Fix Advisory: zero trust workload identity manager for Red Hat OpenShift 1.0.4

Affects Red HatSource GCVE Database

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Mentioned vulnerabilities

Authoritative record:CVE-2026-33818· High 7.5

Not known to be exploited · CVSS 7.5 High · fixed in Red Hat package updates : patch Red Hat asn1 soon.

Data as of 30 Oct 2026, 21:36 UTC

CVSS 3.1 base score
7.5High
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CISA-ADPCVSS 3.17.5
EPSS
0.5% chance of exploitation in 30 days – higher than 47% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 1.27.0-rc.3, 1.26.6, 1.25.13
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 13 Aug 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 encoding/asn1 to 1.27.0-rc.3, 1.26.6 or 1.25.13.

Affected software

ProductAffectedFixed in
Go standard libraryencoding/asn1Affected
  • >=1.27.0-0 <1.27.0-rc.3
Fixed in
  • 1.27.0-rc.3
Go standard libraryencoding/asn1Affected
  • >=1.26.0-0 <1.26.6
Fixed in
  • 1.26.6
Go standard libraryencoding/asn1Affected
  • <1.25.13
Fixed in
  • 1.25.13
Goencoding/asn1pkg:golang/encoding/asn1Other threatsAffected
  • <1.25.13
  • >=1.26.0-0 <1.26.6
  • >=1.27.0-0 <1.27.0-rc.3
Fixed in
  • 1.25.13
  • 1.26.6
  • 1.27.0-rc.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 Zero Trust Workload Identity Manager version 1.0.4 containing fixes for the identified vulnerabilities. Users should ensure all previously released errata are applied before installing or upgrading to this version. If the operator's upgrade approval policy is set to 'Automatic' (default), the operator will upgrade automatically. If set to 'Manual', manual approval of the upgrade is required. Follow the Red Hat security advisories and apply the updated images as per your installation plan. Refer to Red Hat's official security bulletins for detailed mitigation steps.

Description

The Zero Trust Workload Identity Manager (ZTWIM) for Red Hat OpenShift manages secure workload identities in multi-cloud environments by automating identity issuance, rotation, and verification. Two related CVEs, including CVE-2026-111943, describe vulnerabilities in Go's crypto/x509 package that allow improper certificate validation, enabling potential man-in-the-middle attacks via untrusted intermediate certificates. Red Hat has released version 1.0.4 of ZTWIM with bug fixes addressing these issues. The vulnerabilities could compromise the integrity and confidentiality of secure communications in Go-based applications relying on standard TLS certificate verification.

References

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