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CVE-2025-66418VulnerabilityPublished Updated

Red Hat Security Advisory: cert-manager Operator for Red Hat OpenShift 1.18.1

Affects Red HatSource GCVE Database

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Not known to be exploited.

Data as of 29 Oct 2026, 09:13 UTC

Severity
High

Rated by Threat Radar · No CVSS score from NVD or the CNA

EPSS
0.6% chance of exploitation in 30 days – higher than 52% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 22 Jan 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 29 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Red Hat Product Security Red HatAffected
  • Red Hat
  • Cert Manager support for Red Hat OpenShift release
  • Cert Manager support for Red Hat OpenShift release 1.18
  • amd64
  • registry.redhat.io/cert-manager/cert-manager-operator-rhel9@sha256:a7ec101b25000d25a70294ab241dfe95df032bc1af42ab2ece5fad871c1459ac_amd64
Fixed in–

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

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