Mem0: Cross-tenant conversation leak via unescaped delimiter collision in session-scope key (_build_session_scope)
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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| mem0ai | mem0 | affected |
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| Mem0ai | Mem0 |
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| Source | ID | Title |
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Github GHSA |
GHSA-5324-3w58-qpp2 | Mem0: Cross-tenant conversation leak via unescaped delimiter collision in session-scope key (_build_session_scope) |
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.108% probability within 30 days)
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| Metrics |
ssvc
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| First Time appeared |
Mem0ai
Mem0ai mem0 |
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| Vendors & Products |
Mem0ai
Mem0ai mem0 |
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| Description | 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. | |
| Title | Mem0: Cross-tenant conversation leak via unescaped delimiter collision in session-scope key (_build_session_scope) | |
| Weaknesses | CWE-200 CWE-863 |
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| References |
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| Metrics |
cvssV3_1
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