CVE-2026-7730

MEDIUMNVD 6.36.3—
EchelonGraph scoreMEDIUM confidence

Score 6.3 from GitHub Security Advisory (severity: LOW) published 2026-05-04. NVD baseline CVSS 6.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
6.3
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 1%CVSS: 6.3Exploit: NoneExposed: 0

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

A weakness has been identified in privsim mcp-test-runner 0.2.0. Impacted is the function child_process.spawn of the file src/index.ts of the component MCP Interface. Executing a manipulation of the argument command can lead to os command injection. The attack may be launched remotely. The exploit has been made available to the public and could be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.

CVSS v3
6.3
EG Score
6.3(medium)
EPSS
61.6%
KEV
Not listed

Published

May 4, 2026

Last Modified

May 4, 2026

Advisory Details (3)

Auto-updated May 4, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

Command Injection Vulnerability in mcp-test-runner · Issue #24 · privsim/mcp-test-runner · GitHub

https://github.com/privsim/mcp-test-runner/issues/24
generic

GitHub - privsim/mcp-test-runner · GitHub

https://github.com/privsim/mcp-test-runner/
generic🟡 PoC Available

Command Injection Vulnerability in mcp-test-runner · Issue #37 · BruceJqs/public_exp · GitHub

https://github.com/BruceJqs/public_exp/issues/37

Weakness Classification(2)

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

Data Freshness Timeline

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-7730?
CVE-2026-7730 is a medium vulnerability published on May 4, 2026. A weakness has been identified in privsim mcp-test-runner 0.2.0. Impacted is the function child_process.spawn of the file src/index.ts of the component MCP Interface. Executing a manipulation of the argument command can lead to os command injection. The attack may be launched remotely. The exploit…
When was CVE-2026-7730 disclosed?
CVE-2026-7730 was first published in the National Vulnerability Database on May 4, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-7730 actively exploited?
CVE-2026-7730 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 61.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-7730?
CVE-2026-7730 has a CVSS v3 base score of 6.3 (NVD).
How do I remediate CVE-2026-7730?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-7730, 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-2026-7730

Explore →

Is Your Infrastructure Affected by CVE-2026-7730?

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

Start Free Scan →Browse All CVEs