CVE-2026-44995

HIGHNVD 7.37.3—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.3 under NVD CVSS v3. EPSS exploit probability: 0.1%, top 97% 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
7.3
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.3Exploit: NoneExposed: 0

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

OpenClaw before 2026.4.20 contains an improper environment variable validation vulnerability in MCP stdio server configuration that allows attackers to execute arbitrary code. Malicious workspace configurations can pass dangerous startup variables like NODE_OPTIONS, LD_PRELOAD, or BASH_ENV to spawned MCP server processes, enabling code injection when operators start sessions using those servers.

CVSS v3
7.3
EG Score
7.3(medium)
EPSS
3.5%
KEV
Not listed

Published

May 11, 2026

Last Modified

May 13, 2026

Advisory Details (3)

Auto-updated May 11, 2026
Patch available. Sources: github.
generic

OpenClaw < 2026.4.20 - Arbitrary Code Execution via MCP stdio Environment Variables | Advisories | VulnCheck

https://www.vulncheck.com/advisories/openclaw-arbitrary-code-execution-via-mcp-stdio-environment-variables
github Patch Available

MCP stdio server env could load dangerous startup variables from workspace config · Advisory · openclaw/openclaw · GitHub

https://github.com/openclaw/openclaw/security/advisories/GHSA-mj59-h3q9-ghfh
generic

fix(mcp): block dangerous stdio env overrides · openclaw/openclaw@62fa507 · GitHub

https://github.com/openclaw/openclaw/commit/62fa5071896e95edc7f67d1cebc70a2859e283af

Vendor Advisories for CVE-2026-44995(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—2026.4.20—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 6× in last 7d / 44× 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 101 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-44995?
CVE-2026-44995 is a high vulnerability published on May 11, 2026. OpenClaw before 2026.4.20 contains an improper environment variable validation vulnerability in MCP stdio server configuration that allows attackers to execute arbitrary code. Malicious workspace configurations can pass dangerous startup variables like NODEOPTIONS, LDPRELOAD, or BASH_ENV to spawned…
When was CVE-2026-44995 disclosed?
CVE-2026-44995 was first published in the National Vulnerability Database on May 11, 2026, with the most recent update on May 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-44995 actively exploited?
CVE-2026-44995 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 3.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-44995?
CVE-2026-44995 has a CVSS v3 base score of 7.3 (NVD).
How do I remediate CVE-2026-44995?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-44995, 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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