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High-Risk CVE-2026-50240 in OpenShift Pipelines-as-Code

High-Risk CVE-2026-50240 in OpenShift Pipelines-as-Code

First seen 7 Nov 2026, 01:48 UTC • •
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ThreatCluster AI
ThreatCluster •November 7, 2026 at 01:49 UTC
  • •CVE-2026-50240 allows unauthorized execution of PipelineRuns in OpenShift PAC.
  • •Namespace users can escalate privileges and access sensitive resources.
  • •Immediate patching and configuration changes are recommended to mitigate risks.

A flaw, CVE-2026-50240, was discovered in OpenShift Pipelines-as-Code (PAC) that allows unauthorized users to execute attacker-controlled PipelineRuns. This vulnerability arises because PAC does not verify permissions for creating Repository custom resources, enabling users with limited access to escalate privileges within a namespace. The flaw can lead to namespace-scoped privilege escalation, allowing attackers to read secrets and modify resources, posing a risk of supply chain injection in CI/CD environments. OpenShift environments using PAC and auto-provisioned ServiceAccounts are particularly vulnerable. The CVE was published on November 6, 2026, with a CVSS score of 8.8, indicating a high severity. Immediate action is recommended, including applying vendor patches and adjusting configuration settings to mitigate risks. The urgency of exploitation remains unclear as no active exploitation has been confirmed yet.

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Timeline

2026-11-06
CVE-2026-50240 published
Red Hat disclosed a flaw in OpenShift PAC that allows privilege escalation for namespace users.
Redpacketsecurity

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Common questions

What systems are affected?
OpenShift environments using Pipelines-as-Code with auto-provisioned ServiceAccounts are affected.
What is the recommended mitigation?
Apply the vendor's fixed update and set legacyPipelineRbac to false to prevent auto-provisioning of risky RoleBindings.
Is there any active exploitation reported?
No active exploitation has been confirmed as of now, but the risk remains high.