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CVE PROGRAM SOURCE RECORD7.4 High

CVE-2026-75939

Openshift/oc-mirror: release signature verification: openpgp signatureerror checked before signed body is consumed

Description

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 products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Red Hat Red Hat OpenShift Container Platform 4.18

Default version status: affected

  • 1790828598 to < *unaffected

Red Hat Red Hat OpenShift Container Platform 4

Default version status: unaffected

References