Vulnerability · Published Jul 7, 2026 · Assigned by GitHub_M

CVE-2026-42147Coolify: SSRF via S3 Storage Endpoint in testConnection()

Medium 4.9

In plain English

A medium-severity server-side request forgery in coolify from coollabsio. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 26% of all known vulnerabilities).

Severity (CVSS 3.1)4.9Medium

Exploit odds (30 days)0.3%top 74.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to 4.0.0-beta.474, S3 storage endpoint validation only checks URL format and testConnection() sends a server-side request to the configured endpoint, allowing an authenticated user with storage management permissions to make Coolify request internal or metadata-service URLs. This issue is fixed in version 4.0.0-beta.474.

Affected products (as reported)

Vendor	Product	Versions
coollabsio	coolify	< 4.0.0-beta.474

Weakness: CWE-918 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

References

https://github.com/coollabsio/coolify/security/advisories/GHSA-pwm4-w33c-wjf3 x_refsource_CONFIRM
https://github.com/coollabsio/coolify/commit/297e9c41e19958f6237919794c28c3fb1d4cda32 x_refsource_MISC
https://github.com/coollabsio/coolify/releases/tag/v4.0.0-beta.474 x_refsource_MISC