CVE-2026-27956

MEDIUMPre-NVD 4.34.3—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 4.3 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2%, top 93% 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
4.3
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 4.3Exploit: 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.464, GET /api/v1/servers/{server_uuid}/domains?uuid={app_uuid} bypasses team scoping when the optional uuid query parameter is provided. Any authenticated API user can enumerate domain names (FQDNs) of applications belonging to other teams. This vulnerability is fixed in 4.0.0-beta.464.

CVSS v3
4.3
EG Score
4.3(medium)
EPSS
7.2%
KEV
Not listed

Published

June 30, 2026

Last Modified

June 30, 2026

Advisory Details (1)

Auto-updated Jun 30, 2026
Patch available. Sources: github.
github Patch Available

Cross-team application domain enumeration via domains_by_server endpoint · Advisory · coollabsio/coolify · GitHub

https://github.com/coollabsio/coolify/security/advisories/GHSA-9x6p-29p3-h466

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 13× in last 7d / 25× 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. 2026-07-12 05:46 UTCEPSS rescore
  2. 2026-07-12 02:44 UTCEG score recompute
  3. 2026-07-11 08:27 UTCEPSS rescore
  4. 2026-07-11 01:49 UTCEG score recompute
  5. 2026-07-10 00:54 UTCEG score recompute
  6. 2026-07-09 19:10 UTCEPSS rescore
  7. 2026-07-08 23:53 UTCEG score recompute
  8. 2026-07-08 15:15 UTCEPSS rescore
  9. 2026-07-07 22:58 UTCEG score recompute
  10. 2026-07-07 13:46 UTCEPSS rescore
  11. 2026-07-06 22:03 UTCEG score recompute
  12. 2026-07-06 16:27 UTCEPSS rescore
  13. 2026-07-06 16:27 UTCEPSS rescore
  14. 2026-07-05 21:08 UTCEG score recompute
  15. 2026-07-05 02:30 UTCEPSS rescore
  16. 2026-07-04 20:12 UTCEG score recompute
  17. 2026-07-04 06:31 UTCEPSS rescore
  18. 2026-07-04 06:31 UTCEPSS rescore
  19. 2026-07-03 19:17 UTCEG score recompute
  20. 2026-07-02 18:22 UTCEG score recompute
  21. 2026-07-01 17:27 UTCEG score recompute
  22. 2026-07-01 15:06 UTCEPSS rescore
  23. 2026-07-01 15:06 UTCEPSS rescore
  24. 2026-06-30 16:33 UTCEG score recompute
  25. 2026-06-30 16:32 UTCNVD updatefirst tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-27956?
CVE-2026-27956 is a medium vulnerability published on June 30, 2026. Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to 4.0.0-beta.464, GET /api/v1/servers/{serveruuid}/domains?uuid={appuuid} bypasses team scoping when the optional uuid query parameter is provided. Any authenticated API user can enumerate…
When was CVE-2026-27956 disclosed?
CVE-2026-27956 was first published in the National Vulnerability Database on June 30, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-27956 actively exploited?
CVE-2026-27956 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 7.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-27956?
CVE-2026-27956 has a CVSS v3 base score of 4.3 (NVD).
How do I remediate CVE-2026-27956?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-27956, 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.

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