LangGraph Checkpoint Postgres and SQLite Checkpoint are the Postgres and SQLite implementations of LangGraph's checkpoint saver. Prior to 3.1.1, the langgraph-checkpoint-postgres and langgraph-checkpoint-sqlite packages persisted hierarchical namespaces as a dot joined string and scoped reads by matching that string as a simple prefix pattern, so a read scoped to one namespace could also match a sibling namespace whose flattened form shares the same leading characters, or a namespace label containing unescaped pattern metacharacters, allowing an authenticated caller to retrieve stored items belonging to another tenant or user through an ordinary scoped search or list namespaces call, with no crafted input required. This issue is fixed in versions 3.1.1 of langgraph-checkpoint-postgres and langgraph-checkpoint-sqlite.
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Fri, 07 Aug 2026 10:30:00 +0000
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Langchain
Langchain langgraph-checkpoint-sqlite Langchain-ai Langchain-ai langgraph Langchain-ai langgraph-checkpoint-postgres |
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Langchain
Langchain langgraph-checkpoint-sqlite Langchain-ai Langchain-ai langgraph Langchain-ai langgraph-checkpoint-postgres |
Thu, 06 Aug 2026 22:15:00 +0000
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| Description | LangGraph Checkpoint Postgres and SQLite Checkpoint are the Postgres and SQLite implementations of LangGraph's checkpoint saver. Prior to 3.1.1, the langgraph-checkpoint-postgres and langgraph-checkpoint-sqlite packages persisted hierarchical namespaces as a dot joined string and scoped reads by matching that string as a simple prefix pattern, so a read scoped to one namespace could also match a sibling namespace whose flattened form shares the same leading characters, or a namespace label containing unescaped pattern metacharacters, allowing an authenticated caller to retrieve stored items belonging to another tenant or user through an ordinary scoped search or list namespaces call, with no crafted input required. This issue is fixed in versions 3.1.1 of langgraph-checkpoint-postgres and langgraph-checkpoint-sqlite. | |
| Title | LangGraph: Namespace prefix matching crosses segment boundaries in Postgres and SQLite stores | |
| Weaknesses | CWE-200 CWE-863 |
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cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-08-06T19:03:09.362Z
Reserved: 2026-08-06T16:28:51.182Z
Link: CVE-2026-71433
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OpenCVE Enrichment
Updated: 2026-08-07T09:59:09Z