CVE-2026-53864

HIGHPre-NVD 8.18.1—
EchelonGraph scoreHIGH 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
8.1
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 8.1Exploit: NoneExposed: 0

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

OpenClaw before 2026.5.26 contains an insufficient sanitization vulnerability in the host environment sanitizer that allows Node.js control variables to bypass validation. Attackers with access to workspace .env files, tool environment overrides, or skill environment blocks can pass malicious Node.js control variables to influence child processes or coverage output paths.

CVSS v3
8.1
EG Score
8.1(high)
EPSS
15.8%
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 < 2026.5.26 - Insufficient Environment Variable Sanitization in Node.js Control Variables | Advisories | VulnCheck

https://www.vulncheck.com/advisories/openclaw-insufficient-environment-variable-sanitization-in-node-js-control-variables
github Patch Available

Host environment sanitizer missed two Node.js control variables · Advisory · openclaw/openclaw · GitHub

https://github.com/openclaw/openclaw/security/advisories/GHSA-ccwh-wwpp-6wg5

Vendor Advisories for CVE-2026-53864(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—2026.5.26—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 21× in last 7d / 73× 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. 2026-07-06 23:05 UTCEG score recompute
  2. 2026-07-06 16:27 UTCEPSS rescore
  3. 2026-07-06 16:27 UTCEPSS rescore
  4. 2026-07-06 02:23 UTCEPSS rescore
  5. 2026-07-06 02:23 UTCEPSS rescore
  6. 2026-07-06 02:13 UTCEG score recompute
  7. 2026-07-05 14:11 UTCEG score recompute
  8. 2026-07-05 02:31 UTCEPSS rescore
  9. 2026-07-05 02:30 UTCEPSS rescore
  10. 2026-07-05 02:08 UTCEG score recompute
  11. 2026-07-04 14:06 UTCEG score recompute
  12. 2026-07-04 01:55 UTCEG score recompute
  13. 2026-07-03 13:46 UTCEG score recompute
  14. 2026-07-03 00:25 UTCEG score recompute
  15. 2026-07-02 12:23 UTCEG score recompute
  16. 2026-07-02 00:20 UTCEG score recompute
  17. 2026-07-01 15:07 UTCEPSS rescore
  18. 2026-07-01 12:19 UTCEG score recompute
  19. 2026-07-01 00:13 UTCEG score recompute
  20. 2026-06-30 23:22 UTCEPSS rescore
  21. 2026-06-30 12:10 UTCEG score recompute
  22. 2026-06-30 00:07 UTCEG score recompute
  23. 2026-06-29 14:06 UTCEPSS rescore
  24. 2026-06-29 14:06 UTCEPSS rescore
  25. 2026-06-29 12:04 UTCEG score recompute
Show 48 more
  1. 2026-06-29 00:02 UTCEG score recompute
  2. 2026-06-28 14:07 UTCEPSS rescore
  3. 2026-06-28 12:00 UTCEG score recompute
  4. 2026-06-28 04:56 UTCEPSS rescore
  5. 2026-06-28 04:56 UTCEPSS rescore
  6. 2026-06-27 23:59 UTCEG score recompute
  7. 2026-06-27 11:57 UTCEG score recompute
  8. 2026-06-27 03:08 UTCEPSS rescore
  9. 2026-06-26 23:51 UTCEG score recompute
  10. 2026-06-26 11:50 UTCEG score recompute
  11. 2026-06-25 20:43 UTCEG score recompute
  12. 2026-06-25 13:49 UTCEPSS rescore
  13. 2026-06-25 08:41 UTCEG score recompute
  14. 2026-06-24 20:40 UTCEG score recompute
  15. 2026-06-24 14:05 UTCEPSS rescore
  16. 2026-06-24 08:38 UTCEG score recompute
  17. 2026-06-23 21:33 UTCEPSS rescore
  18. 2026-06-23 21:33 UTCEPSS rescore
  19. 2026-06-23 20:36 UTCEG score recompute
  20. 2026-06-23 08:30 UTCEG score recompute
  21. 2026-06-22 20:29 UTCEG score recompute
  22. 2026-06-22 14:25 UTCEPSS rescore
  23. 2026-06-22 14:25 UTCEPSS rescore
  24. 2026-06-22 08:26 UTCEG score recompute
  25. 2026-06-21 20:24 UTCEG score recompute
  26. 2026-06-21 14:56 UTCEPSS rescore
  27. 2026-06-21 14:56 UTCEPSS rescore
  28. 2026-06-21 08:20 UTCEG score recompute
  29. 2026-06-21 01:59 UTCEPSS rescore
  30. 2026-06-21 01:59 UTCEPSS rescore
  31. 2026-06-20 20:18 UTCEG score recompute
  32. 2026-06-20 08:16 UTCEG score recompute
  33. 2026-06-19 20:15 UTCEG score recompute
  34. 2026-06-19 19:26 UTCEPSS rescore
  35. 2026-06-19 19:26 UTCEPSS rescore
  36. 2026-06-19 08:12 UTCEG score recompute
  37. 2026-06-18 20:02 UTCEG score recompute
  38. 2026-06-18 17:52 UTCEPSS rescore
  39. 2026-06-18 17:52 UTCEPSS rescore
  40. 2026-06-18 07:54 UTCEG score recompute
  41. 2026-06-18 07:54 UTCGHSA enrichment
  42. 2026-06-17 19:52 UTCEG score recompute
  43. 2026-06-17 19:52 UTCGHSA enrichment
  44. 2026-06-17 17:53 UTCEPSS rescore
  45. 2026-06-17 07:49 UTCEG score recompute
  46. 2026-06-17 07:49 UTCGHSA enrichment
  47. 2026-06-16 19:48 UTCEG score recompute
  48. 2026-06-16 19:48 UTCNVD updatefirst tracked

Frequently asked(5)

What is CVE-2026-53864?
CVE-2026-53864 is a high vulnerability published on June 16, 2026. OpenClaw before 2026.5.26 contains an insufficient sanitization vulnerability in the host environment sanitizer that allows Node.js control variables to bypass validation. Attackers with access to workspace .env files, tool environment overrides, or skill environment blocks can pass malicious…
When was CVE-2026-53864 disclosed?
CVE-2026-53864 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-2026-53864 actively exploited?
CVE-2026-53864 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 15.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-53864?
CVE-2026-53864 has a CVSS v3 base score of 8.1 (NVD).
How do I remediate CVE-2026-53864?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-53864, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-53864

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