CVE-2026-7738
CVE-2026-7738 is a medium-severity vulnerability with a CVSS 3.x base score of 6.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-22.
Key facts
- Severity: Medium (CVSS 3.x base score 6.3)
- CVSS v2: 6.5
- CVSS v4: 2.1
- EPSS exploit prediction: 0% (21st percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-26919
- Weakness: CWE-22
- Published:
- Last modified:
Description
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.
Frequently asked questions
- What is CVE-2026-7738?
- 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.
- How severe is CVE-2026-7738?
- CVE-2026-7738 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
- Is CVE-2026-7738 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2026-7738?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2026-7738 have an EU (EUVD) identifier?
- Yes. CVE-2026-7738 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-26919.
- When was CVE-2026-7738 published?
- CVE-2026-7738 was published on 2026-05-04 and last updated on 2026-06-17.
References
- https://github.com/BruceJqs/public_exp/issues/38
- https://github.com/puchunjie/doc-tools-mcp/
- https://github.com/puchunjie/doc-tools-mcp/issues/4
- https://vuldb.com/submit/807642
- https://vuldb.com/vuln/360913
- https://vuldb.com/vuln/360913/cti
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