CVE-2025-67644: langchain-ai langgraph SQL Injection

Vulnerability summary

CVE-2025-67644 is a high (CVSS 7.8) SQL Injection vulnerability in langchain-ai langgraph. EPSS estimates a 2.31% chance of exploitation in the next 30 days, higher than 83% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 10-12-2025
   PublishedVulnerability first disclosed.
2. 11-12-2025
   Last modifiedVulnerability information updated.

Description

LangGraph SQLite Checkpoint is an implementation of LangGraph CheckpointSaver that uses SQLite DB (both sync and async, via aiosqlite). Versions 3.0.0 and below are vulnerable to SQL injection through the checkpoint implementation. Checkpoint allows attackers to manipulate SQL queries through metadata filter keys, affecting applications that accept untrusted metadata filter keys (not just filter values) in checkpoint search operations. The _metadata_predicate() function constructs SQL queries by interpolating filter keys directly into f-strings without validation. This issue is fixed in version 3.0.1.

• CWE-89Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data.