Cyber Resilience

CVE-2026-2376

Open Redirect in Redhat Quay 3.0.0

Open Redirect
Published
12 March 2026
Modified
02 June 2026
Patch / advisory
View advisory
CVSS Score v3.1 4.9
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N
EPSS Score 0.0016 5th percentile
Risk Priority 36 floored blend · peak EPSS

Summary

CVE-2026-2376 is a medium-severity Open Redirect (CWE-601) vulnerability in Redhat Enterprise Linux. Its CVSS base score is 4.9 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Phishing (T1566); ranked at the 5th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to SI-10 (Information Input Validation) and AC-4 (Information Flow Enforcement) — see the control section below for these in your framework.

OWASP Top 10 for Web (2025)

A01:2025 Broken Access Control

EU & UK References

Vulnerability Data

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…

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destination, allowing attackers to route requests to systems they should not have access to.

CWE(s)
CWE-601

Related Threats

MITRE ATT&CK Enterprise Techniques

T1566 Phishing Initial Access
Adversaries may send phishing messages to gain access to victim systems.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2023-6291Same product: Redhat Enterprise Linux
CVE-2023-6927Same vendor: Redhat
CVE-2024-7260Same vendor: Redhat
CVE-2026-3872Same vendor: Redhat
CVE-2026-7504Same vendor: Redhat
CVE-2024-8883Same vendor: Redhat
CVE-2025-3155Same product: Redhat Enterprise Linux
CVE-2016-5385Same vendor: Redhat
CVE-2023-4959Same product: Redhat Quay
CVE-2026-6848Same product: Redhat Quay

Affected Assets

redhat
quay
3.0.0
redhat
mirror registry
all versions

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)

—

Validate
Prove the fix (OWASP ASVS)
  • V3.7.2

Mitigating Controls (NIST 800-53 r5) AI

SI-10 Information Input Validation good match

Input validation directly checks and rejects untrusted redirect targets before they are used in a response.

AC-4 Information Flow Enforcement partial match

Information flow enforcement can restrict redirects to only approved/trusted destinations, stopping untrusted user-supplied URLs from being followed.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure SDLC practices directly require input validation and untrusted-redirect controls that prevent CWE-601.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.8.23 Web filtering partial match
mitigates

Preventing access to attacker-controlled or malicious sites stops users from being redirected to untrusted locations via open-redirect or phishing links.

References