CVE-2026-27882: medium-severity vulnerability in coollabsio coolify
Coolify: Timing Attack in GitLab Webhook Token Validation
Published
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 4.8epss 0.2%
Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to 4.0.0-beta.461, the GitLab webhook endpoint uses a non-constant-time string comparison operator (!==) to validate the webhook secret token. This implementation is vulnerable to timing attacks, which could allow an attacker to gradually discover the secret token by measuring response time differences. This vulnerability is fixed in 4.0.0-beta.461.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Affected products
coollabsio · coolifyRelated CVEs — coollabsio coolify
In the same product, most dangerous first.
CVE-2025-66209CRITICALCoolify Vulnerable to Authenticated Remote Code Execution via Command Injection in Database BackupEPSS 3.9%CVE-2025-66213CRITICALCoolify Vulnerable to Authenticated Remote Code Execution via Command Injection in File Storage Directory Mount PathEPSS 3.3%CVE-2025-66212CRITICALCoolify Vulnerable to Authenticated Remote Code Execution via Command Injection in Dynamic Proxy Configuration FilenameEPSS 3.3%CVE-2025-66211CRITICALCoolify Vulnerable to Authenticated Remote Code Execution via Command Injection in PostgreSQL Init Script FilenameEPSS 2.9%CVE-2025-66210CRITICALCoolify Vulnerable to Authenticated Remote Code Execution via Command Injection in Database ImportEPSS 2.9%CVE-2026-34599HIGHCoolify: Authenticated Remote Code Execution in GetLogs Livewire ComponentEPSS 2.8%