Is CVE-2026-102576 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-102576 being exploited in the wild.

How severe is CVE-2026-102576?

Medium severity, with a CVSS score of 4.2, published 5 October 2026.

Is there a fix for CVE-2026-102576?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-102576 attacked?

It is attacked over the network, in a web application.

Am I affected by CVE-2026-102576?

Check whether you run Red Hat Quay. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-102576: Red Hat Quay DOM-based XSS via unvalidated redirect

CVE-2026-102576 · Severity: medium · CVSS 4.2 · Published 2026-10-05

Red Hat Quay is a container image registry that stores and manages application software. A flaw in the login page allows an attacker to craft a malicious link that executes arbitrary JavaScript in a user's authenticated browser session after login. An attacker could steal session cookies, impersonate the user, or modify container images they have access to, but only if the target deployment uses direct database authentication.

Technologies: Red Hat Quay. Vendors: Red Hat.

Quick answers

Is CVE-2026-102576 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-102576 being exploited in the wild.
How severe is CVE-2026-102576?: Medium severity, with a CVSS score of 4.2, published 5 October 2026.
Which products and versions are affected?: Red Hat Quay.
Is there a fix for CVE-2026-102576?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-102576 attacked?: It is attacked over the network, in a web application.
Am I affected by CVE-2026-102576?: Check whether you run Red Hat Quay. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A DOM-based XSS vulnerability exists in Quay's signin page due to improper validation of the redirect_url parameter before navigating (CWE-79). The vulnerability requires network access and user interaction (a user must click a crafted link and complete login), but no authentication is required to craft the malicious URL. Exploitation is limited to deployments using direct database authentication.

Affected products

Red Hat Quay

Timeline

2026-10-05: disclosed

References

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