CVE-2026-41899

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.5 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3%, top 78% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Trending — 3 sources updated this weekElevated
6.5
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 6.5Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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
6.5
EG Score
6.5(medium)
EPSS
21.8%
KEV
Not listed

Published

July 6, 2026

Last Modified

July 7, 2026

Advisory Details (3)

Auto-updated Jul 7, 2026
🔬 Proof of concept available. Patch available. Sources: github, github_commit, github_pr.
github Patch Available🟡 PoC Available

Unauthenticated Feedback Endpoint Allows Abuse (No Auth, No Rate Limit) · Advisory · coollabsio/coolify · GitHub

https://github.com/coollabsio/coolify/security/advisories/GHSA-v64c-v633-58xp
github_pr Patch Available

refactor(api): validate and throttle feedback endpoint

Patch available: coollabsio/coolify v4.0.0-beta.474 (PR #9653 merged 2026-04-19)

https://github.com/coollabsio/coolify/pull/9653
github_commit Patch Available

commit 371e883c75a8 (coollabsio/coolify)

Patch available: coollabsio/coolify v4.0.0-beta.474 (contains commit 371e883c75a8)

https://github.com/coollabsio/coolify/commit/371e883c75a87d82c398bf89ee8ad6387348520d

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 14× in last 7d / 14× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-13 09:17 UTCEG score recompute
  2. 2026-07-13 06:13 UTCEPSS rescore
  3. 2026-07-13 06:13 UTCEPSS rescore
  4. 2026-07-12 07:22 UTCEG score recompute
  5. 2026-07-12 05:46 UTCEPSS rescore
  6. 2026-07-11 08:27 UTCEPSS rescore
  7. 2026-07-11 05:26 UTCEG score recompute
  8. 2026-07-10 03:32 UTCEG score recompute
  9. 2026-07-09 19:10 UTCEPSS rescore
  10. 2026-07-09 01:36 UTCEG score recompute
  11. 2026-07-07 23:40 UTCEG score recompute
  12. 2026-07-07 13:46 UTCEPSS rescore
  13. 2026-07-06 21:45 UTCEG score recompute
  14. 2026-07-06 21:44 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-41899?
CVE-2026-41899 is a medium vulnerability published on July 6, 2026. 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…
When was CVE-2026-41899 disclosed?
CVE-2026-41899 was first published in the National Vulnerability Database on July 6, 2026, with the most recent update on July 7, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-41899 actively exploited?
CVE-2026-41899 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 21.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-41899?
CVE-2026-41899 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2026-41899?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-41899, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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