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CVE-2026-34198— Coolify: Password reset link poisoning via X-Forwarded-Host header spoofing

Quick assessment

Affected
coollabsio coolify
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

coolLabs Coolify是coolLabs团队开源的一个开源和自托管的 Heroku/Netlify/Vercel 替代品。 coolLabs Coolify 4.0.0-beta.471之前版本存在安全漏洞，该漏洞源于TrustProxies中间件信任所有代理并接受来自任何来源的X-Forwarded-Host标头，且TrustHosts中间件存在循环缓存依赖导致无法验证主机，当请求密码重置时，重置密码通知使用可欺骗请求中的主机生成重置URL，可能导致未经身份验证的攻击者触发包含指向攻击者控制域

CVSS 5.3 · Medium EPSS 0.20% · P9

Affected Version Matrix 1

VendorProduct Version RangeStatus
coollabsio coolify < 4.0.0-beta.471 affected
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I. Basic Information for CVE-2026-34198

Vulnerability Information
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Vulnerability Title
Coolify: Password reset link poisoning via X-Forwarded-Host header spoofing
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
忘记口令恢复机制弱
Source: CVE Program / CVE List V5
Vulnerability Title
coolLabs Coolify 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
coolLabs Coolify是coolLabs团队开源的一个开源和自托管的 Heroku/Netlify/Vercel 替代品。 coolLabs Coolify 4.0.0-beta.471之前版本存在安全漏洞，该漏洞源于TrustProxies中间件信任所有代理并接受来自任何来源的X-Forwarded-Host标头，且TrustHosts中间件存在循环缓存依赖导致无法验证主机，当请求密码重置时，重置密码通知使用可欺骗请求中的主机生成重置URL，可能导致未经身份验证的攻击者触发包含指向攻击者控制域
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
coollabsio coolify < 4.0.0-beta.471 -

II. Public POCs for CVE-2026-34198

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III. Intelligence Information for CVE-2026-34198

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Patches & Fixes for CVE-2026-34198 (1)

Vendor Advisories for CVE-2026-34198 (1)

Other References for CVE-2026-34198 (1)

Same Patch Batch · coollabsio · 2026-07-07 · 21 CVEs total

CVE-2026-34047 9.9 CRITICAL Coolify: WebSocket Endpoint Access Control Flaw Leading to Remote Code Execution
CVE-2026-34037 9.9 CRITICAL Cross-Tenant Resource Cloning via Broken Object-Level Authorization in cloneTo()
CVE-2026-34048 9.9 CRITICAL Coolify: Missing authorization on terminal websocket bootstrap routes allows low-privilege
CVE-2026-42200 8.8 HIGH Coolify: PostgreSQL Init Script Path Traversal Leads to Arbitrary File Write and Root RCE
CVE-2026-34158 8.8 HIGH Coolify: Command injection via single-quote breakout in Docker Compose custom commands
CVE-2026-34034 8.8 HIGH Coolify: Host RCE via Sentinel token injection
CVE-2026-34168 8.8 HIGH Coolify: Command injection via unsanitized persistent storage name in docker volume comman
CVE-2026-34058 8.8 HIGH Coolify: OS Command Injection via Unmanaged Container Operations - Remote Code Execution
CVE-2026-34152 8.8 HIGH Coolify: Command Injection via Newline in Pre/Post Deployment Commands (Heredoc Transport)
CVE-2026-34035 8.8 HIGH Coolify: Host RCE via Log Drain secret/env command injection
CVE-2026-34057 8.8 HIGH Coolify: Authenticated Remote Code Execution via Command Injection in Database Import Cont
CVE-2026-42143 8.8 HIGH Coolify: OS Command Injection via Persistent Volume Names - Root RCE on Managed Servers
CVE-2026-34171 8.0 HIGH Coolify: Account takeover via CSRF-able GET endpoint that resets password to attacker-know
CVE-2026-34044 7.7 HIGH Coolify: Cross-team IDOR in logs component (resource lookup not team-scoped)
CVE-2026-42147 4.9 MEDIUM Coolify: SSRF via S3 Storage Endpoint in testConnection()
CVE-2026-34170 4.3 MEDIUM Coolify: Server-Side Request Forgery via attacker-controlled GitHub App API URL
CVE-2026-34149 3.3 LOW Coolify: Authenticated Host-Level RCE via Unescaped Database Credentials in Backup Jobs
CVE-2026-42201 3.3 LOW Coolify: OS Command Injection via Database Credential Fields in Docker Compose Service Com
CVE-2026-42145 3.1 LOW Coolify: File Upload Without Type or Size Validation in Database Backup Restore
CVE-2026-42172 3.1 LOW Coolify: Sanctum API Tokens Have No Expiration — Leaked Tokens Grant Permanent Access

IV. Related Vulnerabilities

Same product: coolify
Same vendor: coollabsio
Same weakness: CWE-640

V. Comments for CVE-2026-34198

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