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[UPDATE] [medium] Red Hat OpenShift Pipelines Operator (Fulcio): Vulnerability allows Denial of Service

mediumCVE-2025-66506
A remote, anonymous attacker can exploit a vulnerability in Red Hat OpenShift Pipelines Operator to carry out a Denial of Service attack.

CSIRTS triage

What
A remote attacker can exploit a vulnerability to carry out a Denial of Service attack.
Who is affected
Deployments of Red Hat OpenShift Pipelines Operator are affected.
Urgency
Remediation is urgent due to the potential for Denial of Service attacks, though exploitation is not currently observed.
Action
Update to the patched version of OpenShift Pipelines Operator.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
CERT-Bund (BSI) Security Advisories (DE · national-cert · site)
Severity
medium
Published
2026-07-20
Exploitation
Not in CISA KEV at last sync
Language
Machine-translated to English — verify against the original

Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-0199

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2025-66506coverage & exploitation statusNVD · CVE.org

Recent advisories for Red Hat OpenShift

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

More from CERT-Bund (BSI) Security Advisories