CVE-2026-41899: CWE-306: Missing Authentication for Critical Function in coollabsio coolify
Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to 4.0.0-beta.474, POST /api/feedback has no authentication, no rate limiting, and no input validation, allowing arbitrary content to be forwarded directly to a Discord webhook and enabling spam, content injection, and webhook abuse. This issue is fixed in version 4.0.0-beta.474.
AI Analysis
Technical Summary
The vulnerability identified as CVE-2026-41899 affects Coolify, an open-source server and application management tool. Before version 4.0.0-beta.474, the POST /api/feedback endpoint does not require authentication, nor does it implement rate limiting or input validation. This missing authentication for a critical function (CWE-306) and lack of input validation (CWE-770) allows attackers to forward arbitrary content directly to a Discord webhook, leading to potential spam and abuse. The vulnerability has a CVSS 3.1 base score of 6.5 (medium severity). The issue is resolved in version 4.0.0-beta.474.
Potential Impact
An attacker can exploit the unauthenticated feedback endpoint to send arbitrary content to a Discord webhook, resulting in spam and content injection. This may disrupt webhook operations and degrade trust in the webhook content. There is no direct confidentiality or availability impact reported, but integrity of webhook messages is compromised.
Mitigation Recommendations
Upgrade to Coolify version 4.0.0-beta.474 or later, where this vulnerability is fixed. Since the vulnerability is addressed in this version, no additional mitigation steps are required.
CVE-2026-41899: CWE-306: Missing Authentication for Critical Function in coollabsio coolify
Description
Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to 4.0.0-beta.474, POST /api/feedback has no authentication, no rate limiting, and no input validation, allowing arbitrary content to be forwarded directly to a Discord webhook and enabling spam, content injection, and webhook abuse. This issue is fixed in version 4.0.0-beta.474.
CVSS v3.1
Score 6.5medium
Affected software
pkg:github/coollabsio/coolifyRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability identified as CVE-2026-41899 affects Coolify, an open-source server and application management tool. Before version 4.0.0-beta.474, the POST /api/feedback endpoint does not require authentication, nor does it implement rate limiting or input validation. This missing authentication for a critical function (CWE-306) and lack of input validation (CWE-770) allows attackers to forward arbitrary content directly to a Discord webhook, leading to potential spam and abuse. The vulnerability has a CVSS 3.1 base score of 6.5 (medium severity). The issue is resolved in version 4.0.0-beta.474.
Potential Impact
An attacker can exploit the unauthenticated feedback endpoint to send arbitrary content to a Discord webhook, resulting in spam and content injection. This may disrupt webhook operations and degrade trust in the webhook content. There is no direct confidentiality or availability impact reported, but integrity of webhook messages is compromised.
Mitigation Recommendations
Upgrade to Coolify version 4.0.0-beta.474 or later, where this vulnerability is fixed. Since the vulnerability is addressed in this version, no additional mitigation steps are required.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-04-22T15:11:54.672Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a4c23d727e9c79719492768
Added to database: 07/06/2026, 21:53:27 UTC
Last enriched: 07/14/2026, 08:59:10 UTC
Last updated: 08/20/2026, 01:19:46 UTC
Views: 145
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