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TI-2026-26495 Aliases CVE-2026-34198

Coolify: Password reset link poisoning via X-Forwarded-Host header spoofing

Priority MEDIUM 57CWE-346Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
High
Impact type
Security bypass
Confidentiality · integrity · availability
None · High · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-346.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.0017 6th percentileScored 2026-11-07
Fix Fixed coolify (coollabsio): 4.0.0-beta.471

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
coollabsiocoolifybefore 4.0.0-beta.4714.0.0-beta.471Patch availableCNA
  • coolify Vendorcoollabsio Affected before 4.0.0-beta.471 Fixed in 4.0.0-beta.471 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:coollabs:coolify:*:*:*:*:*:*:*:*——coollabsio
  • cpe:2.3:a:coollabs:coolify:*:*:*:*:*:*:*:* Versions — — ·coollabsio

Remediation

  • Fix · CNA coolify (coollabsio) Fixed in 4.0.0-beta.471

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-34198

References

Other 4

  • TI-2025-40716 Coolify Vulnerable to Authenticated Remote Code Execution via Command Injection in File Storage Directory Mount Path CVSS 4.0CRITICAL 9.4
  • TI-2025-40715 Coolify Vulnerable to Authenticated Remote Code Execution via Command Injection in Dynamic Proxy Configuration Filename CVSS 4.0CRITICAL 9.4
  • TI-2025-40714 Coolify Vulnerable to Authenticated Remote Code Execution via Command Injection in PostgreSQL Init Script Filename CVSS 4.0CRITICAL 9.4
  • TI-2025-40713 Coolify Vulnerable to Authenticated Remote Code Execution via Command Injection in Database Import CVSS 4.0CRITICAL 9.4
  • TI-2025-40712 Coolify Vulnerable to Authenticated Remote Code Execution via Command Injection in Database Backup CVSS 3.1CRITICAL 10.0
  • TI-2025-16498 Coolify Vulnerable to Private Key Enumeration on Onboarding resulting in Remote Command Execution (RCE) CVSS 3.1CRITICAL 10.0
See all 78 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences