CVE-2026-71433LangGraph: Namespace prefix matching crosses segment boundaries in Postgres and SQLite stores
Updated under an hour ago ()
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It affects langchain-ai langgraph and 2 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 5.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
- Weakness (CWE)
- CWE-200, CWE-863
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- GitHub_M
- NVD analysis
- Awaiting Analysis
- Record last updated
- Aug 7, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
langchain-ai langgraph langchain_ai:langgraph (from the name) | before 3.1.1 | CNA record |
langchain-ai langgraph-checkpoint-sqlite langchain_ai:langgraph_checkpoint_sqlite (from the name) | before 3.1.1 | CNA record |
langchain-ai langgraph-checkpoint-postgres langchain_ai:langgraph_checkpoint_postgres (from the name) | before 3.1.1 | CNA record |
References
- https://github.com/langchain-ai/langgraph/security/advisories/GHSA-47pj-3jcm-6whgx-refsource-confirm
- https://github.com/langchain-ai/langgraph/pull/8478x-refsource-misc
- https://github.com/langchain-ai/langgraph/commit/66ebe1a0da921e73f0f9f879ba105d314c079f7cx-refsource-misc
- https://github.com/langchain-ai/langgraph/releases/tag/checkpointpostgres%3D%3D3.1.1x-refsource-misc
- https://github.com/langchain-ai/langgraph/releases/tag/checkpointsqlite%3D%3D3.1.1x-refsource-misc
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.