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CVE-2026-27022— RediSearch Query Injection in @langchain/langgraph-checkpoint-redis

Quick assessment

Affected
langchain-ai langgraphjs
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

LangGraph.js是LangChain开源的一个大模型编排框架。 LangGraph.js 1.0.2之前版本存在注入漏洞，该漏洞源于过滤器处理中未对用户输入进行适当转义，可能导致查询注入攻击。

CVSS 6.5 · Medium EPSS 0.49% · P40

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-27022

Vulnerability Information
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Vulnerability Title
RediSearch Query Injection in @langchain/langgraph-checkpoint-redis
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
输出中的特殊元素转义处理不恰当(注入)
Source: CVE Program / CVE List V5
Vulnerability Title
LangGraph.js 注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
LangGraph.js是LangChain开源的一个大模型编排框架。 LangGraph.js 1.0.2之前版本存在注入漏洞，该漏洞源于过滤器处理中未对用户输入进行适当转义，可能导致查询注入攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
langchain-ai langgraphjs < 1.0.2 -

II. Public POCs for CVE-2026-27022

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III. Intelligence Information for CVE-2026-27022

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Patches & Fixes for CVE-2026-27022 (1)

IV. Related Vulnerabilities

Same product: langgraphjs
Same vendor: langchain-ai
Same weakness: CWE-74

V. Comments for CVE-2026-27022

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