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Red Hat OpenShift Flaw Lets Attackers Bypass Signature Checks and Inject Malicious Release Images

Cyber Press
Cyber Press
Published September 22, 2026Original Report

Excerpt

Red Hat has disclosed an Important OpenShift vulnerability that could allow attackers to bypass release-image signature verification and insert malicious payloads into disconnected registries. Tracked as CVE-2026-75939, the issue affects the oc-mirror utility and carries a CVSS v3.1 score of 7.4. The flaw stems from an error in how openshift/oc-mirror validates PGP-signed OpenShift release images. The utility checks for a signature error before processing the complete signed…

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Indicators of Compromise

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1 indicators

TypeIndicatorConfidenceScoreFirst Seen
CVECVE-2026-75939MediumScore 51/100First seen

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