CVE-2026-121587
Received Received - Intake

Information Disclosure in Coolify via Unauthenticated Webhook Enumeration

Publication date: 2026-11-03

Last updated on: 2026-11-03

Assigner: VulnCheck

Description
Coolify before 4.1.1 contains an information disclosure vulnerability that allows unauthenticated attackers to enumerate application names across all teams via manual GitHub, GitLab, Bitbucket and Gitea webhooks. Attackers can send a repository name of % or empty with a common branch like main, exploiting unescaped LIKE wildcards to receive every matching application name before signature verification.

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Meta Information

Published
2026-11-03
Last Modified
2026-11-03
Generated
2026-11-03
AI Q&A
2026-11-03
EPSS Evaluated
N/A
NVD
CVE-2026-121587
EUVD
EUVD-2026-116035

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
coollabsio coolify 0

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-200 The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

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Executive Summary

Coolify before version 4.1.1 has an information disclosure vulnerability. Unauthenticated attackers can exploit this by sending specially crafted GitHub, GitLab, Bitbucket, or Gitea webhooks with a repository name containing % or empty and a common branch like main. This exploits unescaped LIKE wildcards to enumerate all application names across teams before signature verification.

Detection Guidance

Check webhook logs for unusual requests with repository names like % or empty strings combined with common branches such as main. Monitor for repeated failed signature verifications or unexpected application name disclosures in responses.

Impact Analysis

Attackers could discover sensitive application names, potentially leading to further targeted attacks. This could expose internal project names, team structures, or other confidential information, increasing risk of data breaches or unauthorized access.

Compliance Impact

This vulnerability may violate compliance requirements by exposing sensitive information without authorization. GDPR requires protecting personal data, and HIPAA requires safeguarding protected health information. Unauthorized disclosure could lead to regulatory penalties.

Mitigation Strategies

Upgrade Coolify to version 4.1.1 or later to patch the vulnerability. Review and restrict webhook access, ensuring proper signature verification is enforced before processing requests.

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