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TI-2026-22226 Aliases CVE-2026-27882

Coolify: Timing Attack in GitLab Webhook Token Validation

Priority MEDIUM 55CWE-208Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
Information disclosure
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-208.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00229 13th percentileScored 2026-11-07
Fix Fixed coolify (coollabsio): 4.0.0-beta.461

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.4614.0.0-beta.461Patch availableCNA
  • coolify Vendorcoollabsio Affected before 4.0.0-beta.461 Fixed in 4.0.0-beta.461 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.461

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-27882

References

Other 1

  • 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