dbcve.org
Missing AuthenticationWeakness · CWE-306

CVE-2026-41899

MEDIUM · 6.5 CVSS v3.1 Published 2026-07-06
Patch available
A vendor patch is available. No clean upgrade release — apply the published patch.
See remediation →
74/100
Remediation priority · Elevated
Remotely reachable No privileges Zero-click Patch available 6 weeks old

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
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.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis
How this class of weakness works · CWE-306

A sensitive function is reachable with no authentication at all, so anyone who finds the endpoint can use it. These are routinely discovered by automated scanning. The fix is to require and enforce authentication on every privileged path, with no exceptions left open.

General guidance for the missing authentication class — the official description and references above are authoritative for this specific CVE. Want a bespoke review and a reviewed fix? Ask our team →

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
Low

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Patch available Apply the vendor patch
Vendor patch github.com →
Recommended fix High confidence

4.0.0-beta.474

  1. 1. Back up your current Coolify installation and database before upgrading.
  2. 2. Identify your current Coolify version by checking the application or running `coolify --version` or checking the UI.
  3. 3. Upgrade Coolify to version 4.0.0-beta.474 or later. The exact upgrade method depends on your installation method (Docker, Kubernetes, or direct installation). For Docker-based deployments, pull the new image tag or use your orchestration tool to redeploy with the updated version.
  4. 4. After upgrading, verify that the /api/feedback endpoint now requires authentication by attempting an unauthored request - it should be rejected.
  5. 5. Confirm the Discord webhook functionality still works correctly with authenticated requests.
Caveat This is a beta version upgrade; beta releases may contain other changes or instabilities. Review release notes for 4.0.0-beta.474 for any breaking changes before upgrading.

Generated from the published advisory — verify against the referenced sources before acting.

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2026-41899 in production — separate from our analysis above.

No notes yet

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What this is

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What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data