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Medium · 5.4 CVE-2026-102295 EUVD-2026-92518GHSA-fjvc-v8v8-pmj9

Quay: quay: dom-based cross-site scripting via oauth local callback format=json parameter

Published Oct 5, 2026 · Updated Nov 1, 2026 · Assigned by redhat

Description

A flaw was found in Quay. A cross-site scripting (XSS) vulnerability in the OAuth callback handler allows a remote attacker to execute arbitrary JavaScript code within a user's browser session. By tricking a logged-in user into visiting a specially crafted link, an attacker can exploit improper input sanitization to run client-side scripts in the application context. Successful exploitation could allow the attacker to compromise the user's session, access sensitive registry information, or perform unauthorized actions on their behalf.

Affected products

VendorProductAffectedFixed
Red Hat Red Hat Quay 3 — —

References