CVE-2026-42204

HIGHPre-NVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.8 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4%, top 72% 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
Elevated
8.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 8.8Exploit: 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. From 4.0.0-beta.471 through 4.0.0-beta.473, a regression in SHELL_SAFE_COMMAND_PATTERN allowed ampersands in custom Docker Compose build, start, and pre/post-deployment command fields, allowing an authenticated team member to inject shell commands that execute on the host. This issue is fixed in version 4.0.0-beta.474.

CVSS v3
8.8
EG Score
8.8(medium)
EPSS
28.1%
KEV
Not listed

Published

July 6, 2026

Last Modified

July 7, 2026

Advisory Details (4)

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

Authenticated RCE via SHELL_SAFE_COMMAND_PATTERN regression → host root · Advisory · coollabsio/coolify · GitHub

https://github.com/coollabsio/coolify/security/advisories/GHSA-chg4-63hm-xv9x
github_release Patch Available

v4.0.0-beta.474

Patch available: coollabsio/coolify v4.0.0-beta.474

https://github.com/coollabsio/coolify/releases/tag/v4.0.0-beta.474
github_pr Patch Available

refactor(validation): tokenize shell-safe command pattern

Patch available: coollabsio/coolify v4.0.0-beta.474 (PR #9684 merged 2026-04-20)

https://github.com/coollabsio/coolify/pull/9684
github_commit Patch Available

commit e1aac50b745c (coollabsio/coolify)

Patch available: coollabsio/coolify v4.0.0-beta.474 (contains commit e1aac50b745c)

https://github.com/coollabsio/coolify/commit/e1aac50b745cf499e710b7e35cd2a9d6a1538dd9

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 22× in last 7d / 30× 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. 2026-07-15 16:57 UTCEPSS rescore
  2. 2026-07-15 15:36 UTCEG score recompute
  3. 2026-07-15 03:57 UTCEG score recompute
  4. 2026-07-15 02:00 UTCEPSS rescore
  5. 2026-07-14 16:18 UTCEG score recompute
  6. 2026-07-14 04:38 UTCEG score recompute
  7. 2026-07-13 22:30 UTCEPSS rescore
  8. 2026-07-13 16:58 UTCEG score recompute
  9. 2026-07-13 06:13 UTCEPSS rescore
  10. 2026-07-13 06:13 UTCEPSS rescore
  11. 2026-07-13 05:19 UTCEG score recompute
  12. 2026-07-12 17:40 UTCEG score recompute
  13. 2026-07-12 06:01 UTCEG score recompute
  14. 2026-07-12 05:46 UTCEPSS rescore
  15. 2026-07-11 18:21 UTCEG score recompute
  16. 2026-07-11 08:27 UTCEPSS rescore
  17. 2026-07-11 06:42 UTCEG score recompute
  18. 2026-07-10 19:03 UTCEG score recompute
  19. 2026-07-10 07:24 UTCEG score recompute
  20. 2026-07-09 19:44 UTCEG score recompute
  21. 2026-07-09 19:10 UTCEPSS rescore
  22. 2026-07-09 08:04 UTCEG score recompute
  23. 2026-07-08 20:25 UTCEG score recompute
  24. 2026-07-08 15:15 UTCEPSS rescore
  25. 2026-07-08 08:46 UTCEG score recompute
Show 5 more
  1. 2026-07-07 21:05 UTCEG score recompute
  2. 2026-07-07 13:46 UTCEPSS rescore
  3. 2026-07-07 09:25 UTCEG score recompute
  4. 2026-07-06 21:45 UTCEG score recompute
  5. 2026-07-06 21:44 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-42204?
CVE-2026-42204 is a high vulnerability published on July 6, 2026. Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. From 4.0.0-beta.471 through 4.0.0-beta.473, a regression in SHELLSAFECOMMAND_PATTERN allowed ampersands in custom Docker Compose build, start, and pre/post-deployment command fields, allowing an…
When was CVE-2026-42204 disclosed?
CVE-2026-42204 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-2026-42204 actively exploited?
CVE-2026-42204 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 28.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-42204?
CVE-2026-42204 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-42204?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-42204, 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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