CVE-2026-27022

Medium

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.

SeverityMedium
CVSS6.5
Exploit probability—
Product@langchain/langgraph-checkpoint-redis
PublishedFeb 20, 2026
First seenFeb 20, 2026
Weakness typeCWE-74Injection

How to fix

Update
  • @langchain/langgraph-checkpoint-redis1.0.2 or later

Affected products

ProductAffected versionsFixed in
@langchain/langgraph-checkpoint-redisnpmv < 1.0.21.0.2

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