CVE-2026-74243 MEDIUM

CVE-2026-74243: Quay: unauthenticated secscan notification endpoint in quay when psk is unset

Vendor Red Hat
Product Red Hat OpenShift Update Service
Weakness CWE-306 · Missing auth
Published August 14, 2026
Last update August 18, 2026

CVSS base score

6.5/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

August 14, 2026 CVE published
August 18, 2026 Record updated

Related vulnerabilities

04Related CVE