CVE-2026-116575
mediumMem0 provides persistent memory infrastructure for AI agents and applications.
Mem0 provides persistent memory infrastructure for AI agents and applications. Prior to Python SDK 2.0.18 and TypeScript SDK 3.1.6, _build_session_scope() in mem0/memory/main.py and Memory.buildSessionScope() in the TypeScript SDK join caller-controlled user_id, agent_id, and run_id values using unescaped & and = delimiters. A caller can embed another scope component in a controlled identifier so that distinct tenant tuples produce the same session_scope key. Memory.add(), AsyncMemory.add(), and the REST POST /memories flow use that key to read and save recent raw messages, allowing cross-tenant conversation disclosure and eviction or interleaving of another tenant's history. This issue is fixed in Python SDK 2.0.18 and TypeScript SDK 3.1.6.
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/mem0ai/mem0/commit/71f2ebefa3494da21550fb525216818776cde67f security-advisories@github.com
- https://github.com/mem0ai/mem0/pull/6892 security-advisories@github.com
- https://github.com/mem0ai/mem0/releases/tag/ts-v3.1.6 security-advisories@github.com
- https://github.com/mem0ai/mem0/releases/tag/v2.0.18 security-advisories@github.com
- https://github.com/mem0ai/mem0/security/advisories/GHSA-5324-3w58-qpp2 security-advisories@github.com