CVE-2026-75939 openshift/oc-mirror - Signature Verification Bypass

openshift/oc-mirror contains a signature verification bypass caused by premature signature error checking in PGP release image verification, letting remote attackers mirror malicious payloads, exploit requires network traffic interception or manipulation.

CVSS base score 7.4 /10
High
CISA KEV
Not listed
Public exploit
None known
EPSS
0.31% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Signature Verification Bypass
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Published
21 September 2026
Updated
15 October 2026
Weakness
CWE-347

Vendor fix

Update to the latest version with fixed signature verification logic.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

← All CVEs