Not a U.S. government website. NDD is an independent vulnerability database by Volerion and is not affiliated with or endorsed by NIST or NVD.

CVE-2026-74240 Details

Description

A flaw was found in Red Hat Quay's JWT (JSON Web Token) validation for federated robot accounts and single sign-on (SSO) authentication. Multiple issues related to audience verification and the enforcement of `azp` and `sub` claims were identified. These flaws could allow an attacker with a validly-signed token from the same identity provider to bypass configured security restrictions. This bypass could lead to unauthorized access by circumventing intended audience, subject, or authorized-client limitations.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:5.4 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

CNA: [email protected]CVSS-B:5.4 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URL	Source(s)	Tag(s)
https://access.redhat.com/security/cve/CVE-2026-74240	[email protected]	Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2516139	[email protected]	Issue TrackingVendor Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-287	Improper Authentication	[email protected]

Affected Products

Product	Versions
redhat openshift update service	All versions
CPE cpe:2.3:a:redhat:openshift_update_service:-:::::::* Remediation No remediation found in references.
redhat quay	3.0.0
CPE cpe:2.3:a:redhat:quay:3.0.0:::::::* Remediation No remediation found in references.

Change History

3 change records found show changes

Date	Action	Recorded By
Aug 20, 2026	Initial Analysis	[email protected]
Aug 20, 2026	CVE Modified	CISA-ADP
Aug 14, 2026	New CVE Received	[email protected]