CVE-2026-74243
Quay: unauthenticated secscan notification endpoint in quay when psk is unset
CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
0th
A flaw was found in Red Hat Quay. When the SECURITY_SCANNER_V4_PSK (pre-shared key) is not set, a remote unauthenticated attacker can send POST requests to the security scanner notification endpoint. This allows the attacker to flood the notification queue and inject path traversal characters into Clair API URL paths. The primary consequence is worker resource exhaustion and blind path manipulation on the configured Clair host, potentially leading to a denial of service.
| CWE | CWE-306 |
| Vendor | red hat |
| Product | red hat openshift update service |
| Published | Aug 14, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
Low
Affected Versions
Red Hat / Red Hat OpenShift Update Service
All versions affected Red Hat / Red Hat Quay 3
All versions affected Red Hat / Red Hat Quay 3
All versions affected References
Credits
Red Hat would like to thank meifukun (https://github.com/meifukun) for reporting this issue.