OpenShift usage across enterprises; authenticated abuse enables workload disruption and TLS secret overwrites, affecting multiple teams.
CVE-2026-10840
Authenticated users can disrupt scheduling and overwrite TLS secrets via tekton-scheduler-role.
Is CVE-2026-10840 being exploited?
Not confirmed. CVE-2026-10840 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 0.22% probability of exploitation in the next 30 days.
How severe is CVE-2026-10840?
CVE-2026-10840 is rated Critical with a CVSS score of 9.6. 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-2026-10840?
Yes. A fix has been recorded for CVE-2026-10840. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-10840 affect?
CVE-2026-10840 affects OpenShift Pipelines operator, Kueue CRDs, cert-manager CRDs. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-10840?
Patch when available; restrict system:authenticated rights; audit CRD access
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Authenticated users can disrupt scheduling, delete other tenants' workloads, alter priorities, or override TLS secrets.
Immediate action required