CVE-2026-53866

HIGHPre-NVD 8.18.1—
EchelonGraph scoreMEDIUM confidence

Score 8.1 from GitHub Security Advisory (severity: HIGH) published 2026-06-16. a secondary CVSS source baseline 8.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
8.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.1Exploit: None knownExposed: 0

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

OpenClaw before 2026.5.12 contains an allowlist bypass vulnerability in shell inline-command parsing that allows authenticated operators to execute unapproved commands. A command request using shell inline-command forms could route through a parser case missing the expected allowlist decision, enabling shell content execution without intended approval prompts.

CVSS v3
8.1
EG Score
8.1(medium)
EG Risk
41(Track)
EG Risk 41/100SSVC: 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
Severity81% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
20%
KEV
Not listed

Published

June 16, 2026

Last Modified

June 18, 2026

Advisory Details (2)

Auto-updated Jun 16, 2026
Patch available. Sources: github.
generic

OpenClaw < 2026.5.12 - Allowlist Bypass in Shell Inline-Command Parsing | Advisories | VulnCheck

https://www.vulncheck.com/advisories/openclaw-allowlist-bypass-in-shell-inline-command-parsing
github Patch Available

Shell inline-command parsing could miss an allowlist check · Advisory · openclaw/openclaw · GitHub

https://github.com/openclaw/openclaw/security/advisories/GHSA-f397-5vjw-v2c2

Vendor Advisories for CVE-2026-53866(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFixed inDependents
openclaw—2026.5.12—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 6× in last 7d / 27× 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 136 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-53866?
CVE-2026-53866 is a high vulnerability published on June 16, 2026. OpenClaw before 2026.5.12 contains an allowlist bypass vulnerability in shell inline-command parsing that allows authenticated operators to execute unapproved commands. A command request using shell inline-command forms could route through a parser case missing the expected allowlist decision,…
When was CVE-2026-53866 disclosed?
CVE-2026-53866 was first published in the National Vulnerability Database on June 16, 2026, with the most recent update on June 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-53866 actively exploited?
CVE-2026-53866 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 80.5% of all scored CVEs.
What is the CVSS score of CVE-2026-53866?
CVE-2026-53866 has a CVSS v3 base score of 8.1 (NVD).
How do I remediate CVE-2026-53866?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-53866, 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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