CVE-2026-85471Quay: quay: webhook notification ssrf -- hostname-string blocklist trivially bypassable
Updated under an hour ago ()
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It affects Red Hat mirror registry for Red Hat OpenShift and 1 other product. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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Free account, 1 product
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.
- CVSS
- 6.4 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
- Weakness (CWE)
- CWE-918
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- redhat
- NVD analysis
- Awaiting Analysis
- Record last updated
- Oct 14, 2026
- First seen by InfoSec Signals
- Oct 12, 2026
Affected products
Red Hat mirror registry for Red Hat OpenShift redhat:mirror_registry | 1 | CNA record |
Red Hat Red Hat Quay 3 redhat:quay | 3 | CNA record |
References
- https://access.redhat.com/security/cve/CVE-2026-85471vdb-entry, x-refsource-redhat
- https://bugzilla.redhat.com/show_bug.cgi?id=2528221issue-tracking, x-refsource-redhat
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.