PYSEC-2026-2634

mem0 server lacks authentication and authorization controls for its memory deletion API endpoint

Description

The mem0 1.0.0 server lacks authentication and authorization controls for its memory deletion API endpoint (DELETE /memories). The endpoint allows unauthenticated users to delete memory records by specifying arbitrary user identifiers (e.g., user_id, run_id, agent_id) in the request query parameters. A remote attacker can exploit this by sending unauthenticated DELETE requests to erase memory data for any user, leading to unauthorized data loss and denial of service.

Affected packages

References

• https://nvd.nist.gov/vuln/detail/CVE-2026-31241 ADVISORY
• https://github.com/mem0ai/mem0 PACKAGE
• https://www.notion.so/CVE-2026-31241-35d1e139318881459ae5e6f0d7dc6f0f WEB
• https://pypi.org/project/mem0ai PACKAGE
• https://github.com/advisories/GHSA-gq6f-qwv9-rf4j ADVISORY

Sources