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.
Metrics
Affected Vendors & Products
References
History
Thu, 15 Oct 2026 19:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:/a:redhat:openshift:4.18::el9 | |
| References |
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Thu, 24 Sep 2026 14:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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Tue, 22 Sep 2026 00:15:00 +0000
| Type | Values Removed | Values Added |
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| References |
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| Metrics |
threat_severity
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threat_severity
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Mon, 21 Sep 2026 19:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Redhat openshift Container Platform
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| Vendors & Products |
Redhat openshift Container Platform
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Mon, 21 Sep 2026 14:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | Openshift/oc-mirror: release signature verification: openpgp signatureerror checked before signed body is consumed | |
| First Time appeared |
Redhat
Redhat openshift |
|
| Weaknesses | CWE-347 | |
| CPEs | cpe:/a:redhat:openshift:4 | |
| Vendors & Products |
Redhat
Redhat openshift |
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| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: redhat
Published: 2026-09-21T14:05:10.429Z
Updated: 2026-10-15T19:13:57.118Z
Reserved: 2026-08-18T15:55:39.041Z
Link: CVE-2026-75939
Updated: 2026-09-24T13:26:11.712Z
Status : Awaiting Analysis
Published: 2026-09-21T15:17:31.520
Modified: 2026-10-15T20:17:14.247
Link: CVE-2026-75939