major vulnerability· requires attention

Affects OpenShift/Tekton Pipelines-as-Code used broadly in enterprise CI/CD; enables namespace privilege escalation and supply-chain compromise in clusters.

Cloud

CVE-2026-50240

8.8

High

EPSS 0.37%Patch available

PAC flaw lets namespace users run PipelineRuns as privileged service account.

exploited

No known exploitation not in CISA KEV as of our last sync

fix

Patch available see the advisory in the references

likelihood

EPSS 0.37%top 69% of scored CVEs

Published 6 Nov 2026Analysed here 9 Nov 2026CVSS scored by the publisher (CNA)

common questions

Is CVE-2026-50240 being exploited?

Not confirmed. CVE-2026-50240 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.37% probability of exploitation in the next 30 days.

How severe is CVE-2026-50240?

CVE-2026-50240 is rated High with a CVSS score of 8.8. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.

Is there a patch for CVE-2026-50240?

Yes. A fix has been recorded for CVE-2026-50240. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.

What does CVE-2026-50240 affect?

CVE-2026-50240 affects OpenShift Pipelines-as-Code (PAC), Tekton Pipelines-as-Code, OpenShift/Kubernetes clusters using PAC. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.

What should I do about CVE-2026-50240?

Apply vendor patch immediately; remove default edit binding; restrict Repository/Secret create perms; audit pipelines.

Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.

executive summary

technical analysis

affected

OpenShift Pipelines-as-Code (PAC)Tekton Pipelines-as-CodeOpenShift/Kubernetes clusters using PAC

impact

Namespace-scoped privilege escalation: attackers can run PipelineRuns as auto-provisioned pipeline ServiceAccount (default edit), read Secrets, create/modify/delete resources, and inject malicious CI/CD steps.

action required

Immediate action required

timeline

6 Nov 2026Published
9 Nov 2026CVE record last updated · 3 days later
9 Nov 2026Analysed by vulneraibility.com · same day later

how to fix

Remediation steps are tailored for users whose stack is affected. Add this technology to your stack to see the fix checklist.

references

NVD CVE.org CVE Details Source

4 references in the CVE record: 4 links

Linkaccess.redhat.com /security/cve/CVE-2026-50240
Linkbugzilla.redhat.com /show_bug.cgi?id=2484752
Linkgithub.com /openshift-pipelines/pipelines-as-code/commit/ac1ff2337fce1ffdf888f513c6202caa95
Linkgithub.com /tektoncd/pipelines-as-code/security/advisories/GHSA-8m5v-wh4r-5j96

sources

CVE List (CVE.org): description, affected versions, references; CVE Terms of Use
NVD: CVSS and CPE data
FIRST EPSS: exploit probability and percentile
Summary, impact and triage tags: written by our AI analysis pipeline from the sources above. Check them against the sources.

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