CVE-2026-41899 Coolify unauthenticated feedback endpoint allows Discord webhook abuse
Unauthenticated feedback endpoint allows attackers to spam Discord webhooks and inject content, requiring an upgrade to Coolify.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-41899?
CVE-2026-41899 is a medium-severity missing authorization vulnerability in coollabsio coolify, published on 6 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to 4.0.0-beta.474, POST /api/feedback has no authentication, no rate limiting, and no input validation, allowing arbitrary content to be forwarded directly to a Discord webhook and enabling spam, content injection, and webhook abuse. This issue is fixed in version 4.0.0-beta.474.
Which versions are affected by CVE-2026-41899?
How do I fix CVE-2026-41899?
No fix has been published for CVE-2026-41899 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-41899 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-41899 exists.
Sources
Also known as GHSA-v64c-v633-58xp.