CVE-2026-85471: Quay: webhook notification ssrf -- hostname-string blocklist trivially bypassable
Red Hat · mirror registry for Red Hat OpenShift
Affected: Red Hat mirror registry for Red Hat OpenShift · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 11% of scored CVEs
DescriptionCVE.org
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.
Affected products4
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- Red Hat · mirror registry for Red Hat OpenShiftVersions not stated
- Red Hat · mirror registry for Red Hat OpenShift 2Versions not stated
- Red Hat · Red Hat Quay 3Versions not stated
- Red Hat · Red Hat Quay 3Versions not stated
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Weakness
- Server-Side Request Forgery
- Vendor
- Red Hat
- Published
- October 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-85471 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.