TI-2026-23373 Aliases CVE-2026-29787 GHSA-73hc-m4hx-79pj

mcp-memory-service: System Information Disclosure via Health Endpoint

MEDIUM 63CWE-200Published 2026-03-07 · Updated 2026-03-09

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Information disclosure
Confidentiality · integrity · availability: Low · None · None
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-200.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00411 35th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix Fixed mcp-memory-service (doobidoo): 10.21.0mcp-memory-service (PyPI): 10.21.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: Yes
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
doobidoo	mcp-memory-service	before 10.21.0	10.21.0	Patch available	CNA
—	mcp-memory-service (PyPI)	before 10.21.0	10.21.0	Patch available	GHSA-73hc-m4hx-79pj

mcp-memory-service Vendordoobidoo Affected before 10.21.0 Fixed in 10.21.0 Patch available CNA
mcp-memory-service (PyPI) Vendor— Affected before 10.21.0 Fixed in 10.21.0 Patch available GHSA-73hc-m4hx-79pj

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:doobidoo:mcp-memory-service::::::::	before 10.21.0	Vulnerable	doobidoo

cpe:2.3:a:doobidoo:mcp-memory-service:*:*:*:*:*:*:*:* Versions before 10.21.0 Vulnerable ·doobidoo

Remediation

Fix · CNA mcp-memory-service (doobidoo) Fixed in 10.21.0
Fix · GHSA-73hc-m4hx-79pj mcp-memory-service (PyPI) Fixed in 10.21.0 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2026-29787
2026-10-03 Alias added: GHSA-73hc-m4hx-79pj

References

TI-2026-25457 mcp-memory-service's Wildcard CORS with Credentials Enables Cross-Origin Memory Theft CVSS 3.1HIGH 8.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences