CVE-2026-16910 Quay: ssrf in red hat quay notification webhooks (slack/generic)
A repository administrator can exploit missing SSRF validation in Quay webhooks to force the server to send requests to internal network addresses.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-16910?
CVE-2026-16910 is a medium-severity server-side request forgery vulnerability in Red Hat OpenShift Update Service, published on 24 Jul 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
A flaw was found in Red Hat Quay's notification webhook feature. The Slack and generic webhook notification handlers accept user-supplied URLs without SSRF validation, allowing a repository administrator to make the Quay worker issue POST requests to internal network addresses or cloud infrastructure endpoints that should not be reachable from the application.
Weakness: CWE-918
Which versions are affected by CVE-2026-16910?
How do I fix CVE-2026-16910?
No fix has been published for CVE-2026-16910 yet. Limit exposure of the affected software until one is available.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2026-16910 being exploited?
There is no known exploitation of CVE-2026-16910 in the wild and no public exploit code.
Sources
Also known as GHSA-6j6h-vfwh-mxgx.