# CVE-2026-50027: doobidoo mcp-memory-service auth bypass in Document API

Source: https://junglewise.ai/threats/cve-2026-50027-doobidoo-mcp-memory-service-auth-bypass-in-document-api  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-08-14. Updated: 2026-07-02  
License: CC BY 4.0 with a link back

CVE-2026-50027 · Severity: critical · CVSS 9.8 · Published 2026-08-14

mcp-memory-service is a tool used to manage and store memories for AI agents. A security flaw in its document management interface allows anyone on the network to read, add, or delete stored data without a password, even if security features like API keys are enabled. This could lead to the exposure of sensitive private notes or the permanent loss of important stored information.

Technologies: [mcp-memory-service (PyPI)](https://junglewise.ai/threats/technologies/pypi-mcp-memory-service). Vendors: [PyPI](https://junglewise.ai/threats/vendors/pypi).

## Quick answers

**Is CVE-2026-50027 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-50027 being exploited in the wild.

**How severe is CVE-2026-50027?** Critical severity, with a CVSS score of 9.8, published 14 August 2026.

**Which products and versions are affected?** Doobidoo Mcp-Memory-Service < 10.67.1; mcp-memory-service (PyPI) ECOSYSTEM:introduced=0,fixed=10.67.1.

**Is there a fix for CVE-2026-50027?** Yes. mcp-memory-service (PyPI): upgrade to 10.67.1 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-50027 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-50027?** Check whether you run Doobidoo Mcp-Memory-Service or mcp-memory-service (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- mcp-memory-service (PyPI): upgrade to 10.67.1 or later

  ```sh
  pip install "mcp-memory-service>=10.67.1"
  ```


## Technical details

The vulnerability is a Missing Authentication for Critical Function (CWE-306) within the FastAPI-based HTTP REST server. The 'documents.py' router was instantiated without any dependency-level authentication guards, unlike the 'memories.py' router which correctly enforces access controls. An unauthenticated attacker can reach endpoints such as /api/documents/upload, /api/documents/search-content, and /api/documents/remove-by-tags. This allows for full CRUD operations on the memory store, including document retrieval, memory poisoning via arbitrary uploads, and data destruction. The issue is resolved in version 10.67.1 by adding explicit authentication dependencies to the affected routes.

## Affected products

- doobidoo mcp-memory-service < 10.67.1

## Identifiers

- CVE-2026-50027
- GHSA-84hp-mqvj-3p8h
- PYSEC-2026-2624

## Timeline

- 2026-05-28: disclosed
- 2026-07-02: advisory: Updated advisory published

## References

- [https://api.github.com/users/EQSTLab](https://api.github.com/users/EQSTLab)
- [https://github.com/EQSTLab](https://github.com/EQSTLab)
- [https://api.github.com/users/EQSTLab/gists%7B/gist_id%7D](https://api.github.com/users/EQSTLab/gists%7B/gist_id%7D)
- [https://api.github.com/users/EQSTLab/repos](https://api.github.com/users/EQSTLab/repos)
- [https://avatars.githubusercontent.com/u/148991397?v=4](https://avatars.githubusercontent.com/u/148991397?v=4)
- [https://api.github.com/users/EQSTLab/events%7B/privacy%7D](https://api.github.com/users/EQSTLab/events%7B/privacy%7D)

## Related threats

- [PYSEC-2026-2625 - mcp-memory-service's Wildcard CORS with Credentials Enables Cross-Origin Memory Theft](https://junglewise.ai/threats/cve-2026-33010-mcp-memory-service-s-wildcard-cors-with-credentials-enables-cross)
- [PYSEC-2026-2623 - mcp-memory-service Vulnerable to System Information Disclosure via Health Endpoint](https://junglewise.ai/threats/cve-2026-29787-mcp-memory-service-vulnerable-to-system-information-disclosure)
- [doobidoo mcp-memory-service authorization bypass in JSON-RPC endpoint](https://junglewise.ai/threats/cve-2026-49291-doobidoo-mcp-memory-service-authorization-bypass-in-json-rpc)