6.5 Medium

A flaw was found in Red Hat Quay.

CVE-2026-74243

A flaw was found in Red Hat Quay. When the SECURITYSCANNERV4PSK (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.

Assessment

CVSS: 6.5 (v3.1)
Severity: Medium
EPSS: 0.46% chance of exploitation in the next 30 days
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 14 August 2026
Last updated: 1 November 2026
Assigner: redhat

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

At the source

EUVD (ENISA)

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