CVE-2026-116575

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 v3 6.3 MEDIUM

6.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.0 / Impact : 5.2

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/mem0ai/mem0/commit/71f2ebefa3494da21550fb525216818776cde67f
https://github.com/mem0ai/mem0/pull/6892
https://github.com/mem0ai/mem0/releases/tag/ts-v3.1.6
https://github.com/mem0ai/mem0/releases/tag/v2.0.18
https://github.com/mem0ai/mem0/security/advisories/GHSA-5324-3w58-qpp2

Configurations

No configuration.

History

26 Oct 2026, 21:18

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-26 21:18

Updated : 2026-10-27 16:04

NVD link : CVE-2026-116575

Mitre link : CVE-2026-116575

CVE.ORG link : CVE-2026-116575

JSON object : View

Products Affected

No product.

CWE

CWE-200

Exposure of Sensitive Information to an Unauthorized Actor

CWE-863

Incorrect Authorization

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