Medium [CVE-2026-121522] Denial of Service via duplicate Git source metadata resolution
This medium-severity Red Hat Linux advisory covers CVE-2026-121522; related products: Assisted Installer for Red Hat OpenShift Container Platform 2, Compliance Operator, Confidential Compute Attestation.
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Summary
Denial of Service via duplicate Git source metadata resolution. Red Hat rates this moderate (CVSS 5.5).
Weakness: CWE-248.
Affected products named by the advisory: Assisted Installer for Red Hat OpenShift Container Platform 2; Compliance Operator; Confidential Compute Attestation; Custom Metric Autoscaler operator for Red Hat Openshift; and 37 more.
Affected products named by the advisory: DPU kit for NVIDIA; Kernel Module Management Operator for Red Hat Openshift; Logical Volume Manager Storage; Migration Toolkit for Applications 8; and 33 more.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative. Check it before change work.
Official advisory · high-confidence parse· fetched 5 hours ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists. Confirm against the vendor advisory.
Official advisory · high-confidence parse· fetched 5 hours ago·verify at source
Mitigation checklist
- Restrict build submission permissions to trusted users and avoid building untrusted definitions or repositories on shared daemon instances. In multi-tenant environments, isolate BuildKit daemon instances per workload to prevent daemon-level crashes from impacting concurrent builds.
Official advisory · high-confidence parse· fetched 5 hours ago·verify at source
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