CVE-2026-85471
Quay: quay: webhook notification ssrf -- hostname-string blocklist trivially bypassable
- State
- Published
- Severity
- 6.4 Medium
- Published
- Oct 12, 2026
- Updated
- Nov 1, 2026
- Reserved
- Sep 3, 2026
Description
A flaw was found in Quay. An authenticated repository administrator could bypass the hostname blacklist in webhook notifications, leading to a Server-Side Request Forgery (SSRF) vulnerability. This allows the Quay application to be tricked into sending requests to internal network resources, such as cloud metadata services or other services within the cluster. Consequently, this could lead to the disclosure of sensitive information from these internal services.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 6.4 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N | redhat |
Weaknesses
- CWE-918 Server-Side Request Forgery
Affected Products
| Product | Versions |
|---|---|
mirror registry for Red Hat OpenShiftRed Hat | |
mirror registry for Red Hat OpenShift 2Red Hat | |
Red Hat Quay 3Red Hat | |
Red Hat Quay 3Red Hat |
References
- https://access.redhat.com/security/cve/CVE-2026-85471vdb-entry
- RHBZ#2528221issue-tracking
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