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Description

Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to 4.0.0-beta.471, the TrustProxies middleware trusts all proxies ($proxies = '*'), accepting X-Forwarded-Host from any source. The TrustHosts middleware, intended to prevent host header attacks, has a circular caching dependency that prevents it from ever validating hosts. When a password reset is requested, the ResetPassword notification generates the reset URL using url(route(..., false)), which derives the host from the (spoofable) request. An unauthenticated attacker can trigger a password reset email containing a link pointing to an attacker-controlled domain, enabling token theft and account takeover. This issue is fixed in version 4.0.0-beta.471.

PUBLISHED Reserved 2026-03-26 | Published 2026-07-07 | Updated 2026-07-07 | Assigner GitHub_M




MEDIUM: 5.3CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N

Problem types

CWE-640: Weak Password Recovery Mechanism for Forgotten Password

CWE-346: Origin Validation Error

Product status

< 4.0.0-beta.471
affected

References

github.com/...oolify/security/advisories/GHSA-cgj8-7m5q-x5gv exploit

github.com/...oolify/security/advisories/GHSA-cgj8-7m5q-x5gv

github.com/coollabsio/coolify/pull/9193

github.com/...ommit/98569e4edbfc316877c9e0d27ea89fab3c49e3bd

github.com/coollabsio/coolify/releases/tag/v4.0.0-beta.471

cve.org (CVE-2026-34198)

nvd.nist.gov (CVE-2026-34198)

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