LangGraph: Namespace prefix matching crosses segment boundaries in Postgres and SQLite stores

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-71433
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-06 22:18:30 UTC
Updated2026-08-06 22:18:30 UTC
DescriptionLangGraph 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.

Risk And Classification

Primary CVSS: v3.1 5.3 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

Problem Types: CWE-200 | CWE-863 | CWE-200 CWE-200: Exposure of Sensitive Information to an Unauthorized Actor | CWE-863 CWE-863: Incorrect Authorization

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary5.3MEDIUMCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
3.1CNADECLARED5.3MEDIUMCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Langchain-ai Langgraph affected < 3.1.1 Not specified
CNA Langchain-ai Langgraph-checkpoint-sqlite affected < 3.1.1 Not specified
CNA Langchain-ai Langgraph-checkpoint-postgres affected < 3.1.1 Not specified

References

ReferenceSourceLinkTags
github.com/langchain-ai/langgraph/security/advisories/GHSA-47pj-3jcm-6whg [email protected] github.com
github.com/langchain-ai/langgraph/releases/tag/checkpointsqlite%3D%3D3.1.1 [email protected] github.com
github.com/langchain-ai/langgraph/commit/66ebe1a0da921e73f0f9f879ba105d3... [email protected] github.com
github.com/langchain-ai/langgraph/releases/tag/checkpointpostgres%3D%3D3... [email protected] github.com
github.com/langchain-ai/langgraph/pull/8478 [email protected] github.com
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