Description (CNA)
A flaw was found in openshift/oc-mirror. The tool incorrectly verifies PGP (Pretty Good Privacy) release image signatures by checking for signature errors before the entire signed body is processed, leading to a bypass of the signature verification. A remote attacker, by intercepting or manipulating network traffic to the signature endpoint, could exploit this to craft a PGP message with a valid Red Hat release key ID but a forged signature. This enables the `oc-mirror` tool to accept and mirror a malicious release payload into a disconnected registry, potentially compromising the integrity of software deployments.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Red Hat / Red Hat OpenShift Container Platform 4.18 | unaffected 1790828598 before * |
| Red Hat / Red Hat OpenShift Container Platform 4 | unaffected |
CWE
CWE-347
References
- https://access.redhat.com/errata/RHSA-2026:79039
- https://access.redhat.com/security/cve/CVE-2026-75939
- https://bugzilla.redhat.com/show_bug.cgi?id=2517976
ADP enrichment
No English description supplied.
No references supplied.