CVE-2026-7738

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: 0%CVSS: 6.3Exploit: NoneExposed: 0

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

A security flaw has been discovered in puchunjie doc-tools-mcp 1.0.18. This affects the function create_document/open_document of the file src/mcp-server.ts of the component MCP Interface. The manipulation of the argument filePath results in path traversal. The attack can be launched remotely. The exploit has been released to the public and may 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
20.7%
KEV
Not listed

Published

May 4, 2026

Last Modified

May 5, 2026

Advisory Details (3)

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

Arbitrary File Read and Write Vulnerability in doc-tools-mcp · Issue #4 · puchunjie/doc-tools-mcp · GitHub

https://github.com/puchunjie/doc-tools-mcp/issues/4
generic

GitHub - puchunjie/doc-tools-mcp · GitHub

https://github.com/puchunjie/doc-tools-mcp/
generic🟡 PoC Available

Arbitrary File Read and Write Vulnerability in doc-tools-mcp · Issue #38 · BruceJqs/public_exp · GitHub

https://github.com/BruceJqs/public_exp/issues/38

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
npm@puchunjie/doc-tools-mcp—ghsa

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFixed inDependents
@puchunjie/doc-tools-mcp———

Weakness Classification(1)

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

Data Freshness Timeline

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-7738?
CVE-2026-7738 is a medium vulnerability published on May 4, 2026. A security flaw has been discovered in puchunjie doc-tools-mcp 1.0.18. This affects the function createdocument/opendocument of the file src/mcp-server.ts of the component MCP Interface. The manipulation of the argument filePath results in path traversal. The attack can be launched remotely. The…
When was CVE-2026-7738 disclosed?
CVE-2026-7738 was first published in the National Vulnerability Database on May 4, 2026, with the most recent update on May 5, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-7738 actively exploited?
CVE-2026-7738 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 20.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-7738?
CVE-2026-7738 has a CVSS v3 base score of 6.3 (NVD).
How do I remediate CVE-2026-7738?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-7738, 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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