CVE-2026-54636

CRITICALNVD 9.99.9—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.9 under NVD CVSS v3. EPSS exploit probability: 0.3%, top 81% 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, nvd
9.9
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 9.9Exploit: NoneExposed: 0

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

Dokku is a docker-powered PaaS. Prior to 0.38.7, the cron plugin utilizes commands in the app.json file to manage system cron running as the Dokku user. An app.json cron command utilizing special shell characters - including, but not limited to, > or ; - can break out of the Docker container and execute commands on the host as the Dokku user. This vulnerability is fixed in 0.38.7.

CVSS v3
9.9
EG Score
9.9(medium)
EPSS
19.3%
KEV
Not listed

Published

June 26, 2026

Last Modified

June 29, 2026

Advisory Details (2)

Auto-updated Jul 14, 2026
Patch available. Sources: github_pr, github.
github Patch Available

OS Command Injection via app.json managed Cron · Advisory · dokku/dokku · GitHub

https://github.com/dokku/dokku/security/advisories/GHSA-72vm-7pc2-x95w
github_pr Patch Available

Prevent host shell injection from app.json cron commands

Patch available: dokku/dokku v0.38.7 (PR #8672 merged 2026-05-25)

https://github.com/dokku/dokku/pull/8672

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 53× in last 7d / 148× 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 148 total refreshes for this CVE.

  1. 2026-07-16 01:59 UTCEG score recompute
  2. 2026-07-15 21:56 UTCEG score recompute
  3. 2026-07-15 17:51 UTCEG score recompute
  4. 2026-07-15 16:57 UTCEPSS rescore
  5. 2026-07-15 16:57 UTCEPSS rescore
  6. 2026-07-15 13:44 UTCEG score recompute
  7. 2026-07-15 09:21 UTCEG score recompute
  8. 2026-07-15 05:13 UTCEG score recompute
  9. 2026-07-15 02:00 UTCEPSS rescore
  10. 2026-07-15 02:00 UTCEPSS rescore
  11. 2026-07-15 00:19 UTCEG score recompute
  12. 2026-07-14 20:16 UTCEG score recompute
  13. 2026-07-14 16:13 UTCEG score recompute
  14. 2026-07-14 12:11 UTCEG score recompute
  15. 2026-07-14 08:09 UTCEG score recompute
  16. 2026-07-14 03:57 UTCEG score recompute
  17. 2026-07-13 23:55 UTCEG score recompute
  18. 2026-07-13 22:31 UTCEPSS rescore
  19. 2026-07-13 19:53 UTCEG score recompute
  20. 2026-07-13 15:50 UTCEG score recompute
  21. 2026-07-13 11:48 UTCEG score recompute
  22. 2026-07-13 07:45 UTCEG score recompute
  23. 2026-07-13 06:13 UTCEPSS rescore
  24. 2026-07-13 06:13 UTCEPSS rescore
  25. 2026-07-13 03:43 UTCEG score recompute
Show 75 more
  1. 2026-07-12 23:41 UTCEG score recompute
  2. 2026-07-12 19:38 UTCEG score recompute
  3. 2026-07-12 15:35 UTCEG score recompute
  4. 2026-07-12 11:31 UTCEG score recompute
  5. 2026-07-12 07:28 UTCEG score recompute
  6. 2026-07-12 05:46 UTCEPSS rescore
  7. 2026-07-12 03:25 UTCEG score recompute
  8. 2026-07-11 23:22 UTCEG score recompute
  9. 2026-07-11 19:20 UTCEG score recompute
  10. 2026-07-11 15:18 UTCEG score recompute
  11. 2026-07-11 11:16 UTCEG score recompute
  12. 2026-07-11 08:27 UTCEPSS rescore
  13. 2026-07-11 08:27 UTCEPSS rescore
  14. 2026-07-11 07:13 UTCEG score recompute
  15. 2026-07-11 03:10 UTCEG score recompute
  16. 2026-07-10 23:07 UTCEG score recompute
  17. 2026-07-10 19:03 UTCEG score recompute
  18. 2026-07-10 15:00 UTCEG score recompute
  19. 2026-07-10 10:57 UTCEG score recompute
  20. 2026-07-10 06:49 UTCEG score recompute
  21. 2026-07-10 02:45 UTCEG score recompute
  22. 2026-07-09 22:40 UTCEG score recompute
  23. 2026-07-09 19:10 UTCEPSS rescore
  24. 2026-07-09 19:10 UTCEPSS rescore
  25. 2026-07-09 18:37 UTCEG score recompute
  26. 2026-07-09 14:35 UTCEG score recompute
  27. 2026-07-09 10:24 UTCEG score recompute
  28. 2026-07-09 06:20 UTCEG score recompute
  29. 2026-07-09 02:18 UTCEG score recompute
  30. 2026-07-08 22:08 UTCEG score recompute
  31. 2026-07-08 18:05 UTCEG score recompute
  32. 2026-07-08 14:03 UTCEG score recompute
  33. 2026-07-08 10:01 UTCEG score recompute
  34. 2026-07-08 05:57 UTCEG score recompute
  35. 2026-07-08 01:55 UTCEG score recompute
  36. 2026-07-07 21:53 UTCEG score recompute
  37. 2026-07-07 17:50 UTCEG score recompute
  38. 2026-07-07 13:46 UTCEPSS rescore
  39. 2026-07-07 13:46 UTCEPSS rescore
  40. 2026-07-07 13:44 UTCEG score recompute
  41. 2026-07-07 09:42 UTCEG score recompute
  42. 2026-07-07 05:39 UTCEG score recompute
  43. 2026-07-07 01:35 UTCEG score recompute
  44. 2026-07-06 21:30 UTCEG score recompute
  45. 2026-07-06 17:24 UTCEG score recompute
  46. 2026-07-06 16:27 UTCEPSS rescore
  47. 2026-07-06 16:27 UTCEPSS rescore
  48. 2026-07-06 13:18 UTCEG score recompute
  49. 2026-07-06 09:14 UTCEG score recompute
  50. 2026-07-06 05:09 UTCEG score recompute
  51. 2026-07-06 02:23 UTCEPSS rescore
  52. 2026-07-06 02:23 UTCEPSS rescore
  53. 2026-07-06 01:05 UTCEG score recompute
  54. 2026-07-05 21:01 UTCEG score recompute
  55. 2026-07-05 16:58 UTCEG score recompute
  56. 2026-07-05 12:56 UTCEG score recompute
  57. 2026-07-05 08:53 UTCEG score recompute
  58. 2026-07-05 04:50 UTCEG score recompute
  59. 2026-07-05 02:31 UTCEPSS rescore
  60. 2026-07-05 02:30 UTCEPSS rescore
  61. 2026-07-05 00:47 UTCEG score recompute
  62. 2026-07-04 20:44 UTCEG score recompute
  63. 2026-07-04 16:41 UTCEG score recompute
  64. 2026-07-04 12:26 UTCEG score recompute
  65. 2026-07-04 08:24 UTCEG score recompute
  66. 2026-07-04 06:31 UTCEPSS rescore
  67. 2026-07-04 06:31 UTCEPSS rescore
  68. 2026-07-04 04:21 UTCEG score recompute
  69. 2026-07-04 00:17 UTCEG score recompute
  70. 2026-07-03 20:14 UTCEG score recompute
  71. 2026-07-03 16:12 UTCEG score recompute
  72. 2026-07-03 12:09 UTCEG score recompute
  73. 2026-07-03 07:53 UTCEG score recompute
  74. 2026-07-03 03:49 UTCEG score recompute
  75. 2026-07-02 23:43 UTCEG score recompute

Frequently asked(5)

What is CVE-2026-54636?
CVE-2026-54636 is a critical vulnerability published on June 26, 2026. Dokku is a docker-powered PaaS. Prior to 0.38.7, the cron plugin utilizes commands in the app.json file to manage system cron running as the Dokku user. An app.json cron command utilizing special shell characters - including, but not limited to, > or ; - can break out of the Docker container and…
When was CVE-2026-54636 disclosed?
CVE-2026-54636 was first published in the National Vulnerability Database on June 26, 2026, with the most recent update on June 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-54636 actively exploited?
CVE-2026-54636 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 19.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-54636?
CVE-2026-54636 has a CVSS v3 base score of 9.9 (NVD).
How do I remediate CVE-2026-54636?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-54636, 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

Explore the affected products and dependency analysis for CVE-2026-54636

Explore →

Is Your Infrastructure Affected by CVE-2026-54636?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs