CVE-2026-2376 — MEDIUM (4.9)

Vulnerability Description

A flaw was found in mirror-registry where an authenticated user can trick the system into accessing unintended internal or restricted systems by providing malicious web addresses. When the application processes these addresses, it automatically follows redirects without verifying the final destination, allowing attackers to route requests to systems they should not have access to.

CVSS Score

4.9

MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality

LOW

Integrity

LOW

Availability

NONE

Affected Products

Vendor	Product	Versions
Redhat	Quay	3.0.0
Redhat	Enterprise Linux	8.0
Redhat	Mirror Registry	-

Related Weaknesses (CWE)

CWE-601

References

https://access.redhat.com/security/cve/CVE-2026-2376Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2439117Vendor Advisory
https://github.com/quay/quay/pull/5074Issue TrackingPatch

FAQ

What is CVE-2026-2376?

CVE-2026-2376 is a vulnerability with a CVSS score of 4.9 (MEDIUM). A flaw was found in mirror-registry where an authenticated user can trick the system into accessing unintended internal or restricted systems by providing malicious web addresses. When the applicati...

How severe is CVE-2026-2376?

CVE-2026-2376 has been rated MEDIUM with a CVSS base score of 4.9/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-2376?

Check the references section above for vendor advisories and patch information. Affected products include: Redhat Quay, Redhat Enterprise Linux, Redhat Mirror Registry.