Red Hat Security Advisory: cert-manager Operator for Red Hat OpenShift 1.18.1
Affects Red HatSource GCVE Database
Not known to be exploited · CVSS 6.5 Medium · patch available : update Red Hat x509 when convenient.
Data as of 2 Nov 2026, 06:28 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 20% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:NExploitation evidence
Disclosed: evidence found.
CVE published 3 Dec 2025
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 1 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Gogithub.com/golang/go/src/crypto/x509pkg:golang/github.com/golang/go/src/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 are applied. For cert-manager Operator installations with the default 'Automatic' approval policy, upgrades will be applied automatically when available. For 'Manual' approval policy, administrators must manually approve upgrades. Consulting Red Hat support or a Technical Account Manager may provide additional guidance.
Description
The cert-manager Operator for Red Hat OpenShift builds on top of Kubernetes, introducing certificate authorities and certificates as first-class resource types in the Kubernetes API. This makes it possible to provide certificates-as-a-service to developers working within your Kubernetes cluster.
References
- access.redhat.com/errata/RHSA-2026:1042 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2025-61727 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2025-61729 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2025-66418 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2025-66471 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-21441 (opens in a new tab)
- access.redhat.com/security/updates/classification/ (opens in a new tab)
- docs.openshift.com/container-platform/latest/security/cert_manager_operator/index.html (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_1042.json (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:1168 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_1168.json (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:7070 (opens in a new tab)
- images.redhat.com (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_7070.json (opens in a new tab)
- msrc.microsoft.com/csaf/vex/2025/msrc_cve-2025-61727.json (opens in a new tab)
- support.microsoft.com/lifecycle (opens in a new tab)
- first.org/cvss (opens in a new tab)
- github.com/stakater/Reloader (opens in a new tab)