CVE-2026-34198: 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 ($proxie

mediumCVSS 5.3CVE-2026-34198

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.

Details

Source: NVD Recent CVEs (US · database · site)
Severity: medium — CVSS 5.3
Published: 2026-07-07
Last updated: 2026-07-07
Exploitation: Not in CISA KEV at last sync

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-34198

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-341980.14% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 4% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-34198	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

high[NEW] [high] Coolify: Multiple vulnerabilitiescert-bund

Recent advisories for Coolify is an

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

high[NEW] [high] Coolify: Multiple vulnerabilitiescert-bund · 2026-07-10
highCVE-2026-59734: Coolify is an open-source and self-hostable tool for managing servers, applications, and datab…nvd · 2026-07-09
high[NEW] [high] Coolify: Vulnerability allows code execution and disclosurecert-bund · 2026-07-07
lowCVE-2026-42201: Coolify is an open-source and self-hostable tool for managing servers, applications, and datab…nvd · 2026-07-07
highCVE-2026-34158: Coolify is an open-source and self-hostable tool for managing servers, applications, and datab…nvd · 2026-07-07
highCVE-2026-42200: Coolify is an open-source and self-hostable tool for managing servers, applications, and datab…nvd · 2026-07-07