How severe is CVE-2026-7400?

CVE-2026-7400 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2026-7400 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-7400?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-7400 have an EU (EUVD) identifier?

Yes. CVE-2026-7400 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-26281.

When was CVE-2026-7400 published?

CVE-2026-7400 was published on 2026-04-29 and last updated on 2026-06-17.

CVE-2026-7400

CVE-2026-7400 is a high-severity vulnerability with a CVSS 3.x base score of 7.3. 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: High (CVSS 3.x base score 7.3)
CVSS v2: 7.5
CVSS v4: 5.5
EPSS exploit prediction: 0% (35th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-26281
Weakness: CWE-22
Published: 2026-04-29
Last modified: 2026-06-17

Description

A security vulnerability has been detected in geekgod382 filesystem-mcp-server 1.0.0. This issue affects the function is_path_allowed of the file server.py of the component read_file_tool/write_file_tool. Such manipulation leads to path traversal. The attack can be launched remotely. The exploit has been disclosed publicly and may be used. Upgrading to version 1.1.0 is capable of addressing this issue. The name of the patch is 45364545fc60dc80aadcd4379f08042d3d3d292e. Upgrading the affected component is advised.

Frequently asked questions

What is CVE-2026-7400?: A security vulnerability has been detected in geekgod382 filesystem-mcp-server 1.0.0. This issue affects the function is_path_allowed of the file server.py of the component read_file_tool/write_file_tool. Such manipulation leads to path traversal. The attack can be launched remotely. The exploit has been disclosed publicly and may be used. Upgrading to version 1.1.0 is capable of addressing this issue. The name of the patch is 45364545fc60dc80aadcd4379f08042d3d3d292e. Upgrading the affected component is advised.
How severe is CVE-2026-7400?: CVE-2026-7400 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2026-7400 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-7400?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-7400 have an EU (EUVD) identifier?: Yes. CVE-2026-7400 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-26281.
When was CVE-2026-7400 published?: CVE-2026-7400 was published on 2026-04-29 and last updated on 2026-06-17.

References

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