CVE-2026-29787 mcp-memory-service: System Information Disclosure via Health Endpoint
Unauthenticated attackers can access detailed system information via the health endpoint when anonymous access is enabled, exposing sensitive reconnaissance data.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-29787?
CVE-2026-29787 is a medium-severity vulnerability in doobidoo mcp-memory-service, published on 7 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-200
Which versions are affected by CVE-2026-29787?
3 open source packages ship an affected version, including mcp-memory-service. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
mcp-memory-service PyPI | All versions | 10.21.0 |
mcp-memory-service PyPI | All versions | 10.21.0 |
mcp-memory-service PyPI | All versions | 10.21.0 |
Products include Doobidoo Mcp-Memory-Service.
How do I fix CVE-2026-29787?
Upgrade mcp-memory-service to 10.21.0 or later.
Is CVE-2026-29787 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-29787 exists.
Other vulnerabilities in doobidoo mcp-memory-service
Sources
Also known as GHSA-73hc-m4hx-79pj, PYSEC-2026-2623.