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: 0.7%, top 51% 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
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 8.8Exploit: Elevated riskExposed: 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)
EG Risk
56(Track*)
EG Risk 56/100SSVC: Track*

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity88% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
1%
EPSS %ILE
49%
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 8× in last 7d / 43× 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.

Showing the most recent 100 of 102 total refreshes for this CVE.

  1. 2026-09-11 14:53 UTCEPSS rescore
  2. 2026-09-11 09:37 UTCEPSS rescore
  3. 2026-09-10 09:34 UTCEPSS rescore
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  6. 2026-09-06 14:10 UTCEG score recompute
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  9. 2026-09-04 05:06 UTCEPSS rescore
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  12. 2026-08-30 19:37 UTCEG score recompute
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  1. 2026-08-22 04:46 UTCEG score recompute
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  6. 2026-08-19 17:03 UTCEPSS rescore
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  8. 2026-08-18 13:48 UTCEPSS rescore
  9. 2026-08-17 23:56 UTCEG score recompute
  10. 2026-08-17 13:47 UTCEPSS rescore
  11. 2026-08-17 00:37 UTCEG score recompute
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  20. 2026-08-12 13:51 UTCEPSS rescore
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  22. 2026-08-11 13:43 UTCEPSS rescore
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  24. 2026-08-11 00:00 UTCEPSS rescore
  25. 2026-08-09 16:46 UTCEG score recompute
  26. 2026-08-09 13:46 UTCEPSS rescore
  27. 2026-08-08 17:28 UTCEG score recompute
  28. 2026-08-08 16:37 UTCEPSS rescore
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  30. 2026-08-06 18:51 UTCEG score recompute
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  40. 2026-08-02 02:27 UTCEPSS rescore
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  42. 2026-08-01 04:16 UTCEPSS rescore
  43. 2026-07-30 22:48 UTCEG score recompute
  44. 2026-07-30 16:28 UTCEPSS rescore
  45. 2026-07-30 11:09 UTCEG score recompute
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  48. 2026-07-28 15:36 UTCEPSS rescore
  49. 2026-07-28 00:42 UTCEG score recompute
  50. 2026-07-27 14:13 UTCEPSS rescore
  51. 2026-07-27 00:39 UTCEG score recompute
  52. 2026-07-26 14:54 UTCEPSS rescore
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  54. 2026-07-26 12:45 UTCEG score recompute
  55. 2026-07-25 14:18 UTCEPSS rescore
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  58. 2026-07-23 03:11 UTCEG score recompute
  59. 2026-07-22 14:08 UTCEPSS rescore
  60. 2026-07-21 15:24 UTCEPSS rescore
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  62. 2026-07-19 14:31 UTCEPSS rescore
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  66. 2026-07-15 16:57 UTCEPSS rescore
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  71. 2026-07-12 05:46 UTCEPSS rescore
  72. 2026-07-11 08:27 UTCEPSS rescore
  73. 2026-07-09 19:10 UTCEPSS rescore
  74. 2026-07-08 15:15 UTCEPSS rescore
  75. 2026-07-07 13:46 UTCEPSS rescore

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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 1% probability of exploitation in the next 30 days, which ranks it in the top 50.9% of all scored CVEs.
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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