RediSearch Query Injection in @langchain/langgraph-checkpoint-redis_CVE-2026-27022

6.5 / 10

MEDIUM

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

Description

@langchain/langgraph-checkpoint-redis is the Redis checkpoint and store implementation for LangGraph. A query injection vulnerability exists in the @langchain/langgraph-checkpoint-redis package's filter handling. The RedisSaver and ShallowRedisSaver classes construct RediSearch queries by directly interpolating user-provided filter keys and values without proper escaping. RediSearch has special syntax characters that can modify query behavior, and when user-controlled data contains these characters, the query logic can be manipulated to bypass intended access controls. This vulnerability is fixed in 1.0.2.

Basic Information

ID CVE-2026-27022

Source GitHub_M

Published Feb 20, 2026 at 21:06

Affected Product

Vendor langchain-ai

Product langgraphjs

Version < 1.0.2

Affected Versions langchain-ai langgraphjs < 1.0.2

CWE Classification

CWE-74

References

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    "published": "2026-02-20T21:06:53.773Z",
    "modified": "2026-02-20T21:06:53.773Z",
    "type": "cve",
    "title": "RediSearch Query Injection in @langchain/langgraph-checkpoint-redis",
    "source": "GitHub_M",
    "references": "https://github.com/langchain-ai/langgraphjs/security/advisories/GHSA-5mx2-w598-339m\nhttps://github.com/langchain-ai/langgraphjs/pull/1943\nhttps://github.com/langchain-ai/langgraphjs/commit/814c76dc3938d0f6f7e17ca3bc11d6a12270b2a1\nhttps://github.com/langchain-ai/langgraphjs/releases/tag/@langchain/[email protected]",
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