CVE-2026-27022
Received Received - Intake
Query Injection in @langchain/langgraph-checkpoint-redis Enables Access Bypass

Publication date: 2026-02-20

Last updated on: 2026-02-20

Assigner: GitHub, Inc.

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.
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Meta Information
Published
2026-02-20
Last Modified
2026-02-20
Generated
2026-06-16
AI Q&A
2026-02-21
EPSS Evaluated
2026-06-15
NVD
CVE-2026-27022
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
langchain langgraph-checkpoint-redis 1.0.2
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-74 The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.
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Executive Summary

The vulnerability exists in the @langchain/langgraph-checkpoint-redis package, specifically in how it handles filters for RediSearch queries. The RedisSaver and ShallowRedisSaver classes build RediSearch queries by directly inserting user-provided filter keys and values without properly escaping special syntax characters. Because RediSearch uses special characters to control query behavior, an attacker can manipulate these characters in the input to alter the query logic, leading to a query injection vulnerability.

Impact Analysis

This vulnerability can allow an attacker to bypass intended access controls by manipulating the RediSearch queries through specially crafted inputs. This means unauthorized users might gain access to data or functionality that should be restricted, potentially leading to data exposure or other security issues.

Compliance Impact

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Detection Guidance

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Mitigation Strategies

To mitigate this vulnerability, upgrade the @langchain/langgraph-checkpoint-redis package to version 1.0.2 or later, where the issue with query injection via unescaped filter keys and values has been fixed.

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