AUGUST 16, 2026
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Case File

CVE-2026-71433

MEDIUM · CVSS 5.3 EPSS 0.22% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-06 · Last synced 2026-08-16

CyberRota Analysis

AI-Generated

LangGraph's checkpoint saver for Postgres and SQLite prior to version 3.1.1 is vulnerable due to improper handling of hierarchical namespaces, allowing authenticated users to access data belonging to other tenants or users through scoped searches. This could lead to unauthorized data exposure without the need for crafted input. Organizations using affected versions should prioritize upgrading to version 3.1.1 to mitigate the risk of data leakage.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-71433
Severity
MEDIUM
CVSS
5.3
EPSS
0.22%

Original NVD 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.