HIGH 7.4 NVD
CVE-2026-75939
A flaw was found in openshift/oc-mirror. The tool incorrectly verifies PGP (Pretty Good Privacy) release image signatures by checking for signature errors befor
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.
References
- https://access.redhat.com/security/cve/CVE-2026-75939
- https://bugzilla.redhat.com/show_bug.cgi?id=2517976
This high severity vulnerability with a CVSS score of 7.4 was published on 2026-09-21 via NVD.
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