CVE-2026-34198
Coolify: Password reset link poisoning via X-Forwarded-Host header spoofing
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.
INFO
Published Date :
July 7, 2026, 4:17 a.m.
Last Modified :
July 7, 2026, 4:17 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update Coolify to version 4.0.0-beta.471.
- Review and update proxy and host validation settings.
- Ensure secure handling of host headers.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-34198.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-34198 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-34198
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-34198 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-34198 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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New CVE Received by [email protected]
Jul. 07, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'coollabsio', 'product': 'coolify', 'versions': [{'status': 'affected', 'version': '< 4.0.0-beta.471'}]}] Added 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. Added CVSS V3.1 AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N Added CWE CWE-640 Added CWE CWE-346 Added Reference https://github.com/coollabsio/coolify/commit/98569e4edbfc316877c9e0d27ea89fab3c49e3bd Added Reference https://github.com/coollabsio/coolify/pull/9193 Added Reference https://github.com/coollabsio/coolify/releases/tag/v4.0.0-beta.471 Added Reference https://github.com/coollabsio/coolify/security/advisories/GHSA-cgj8-7m5q-x5gv