CVE-2026-27022

MEDIUM 6.5

RediSearch Query Injection in @langchain/langgraph-checkpoint-redis

CVSS Score

6.5

EPSS Score

0.0%

EPSS Percentile

0th

@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.

CWE	CWE-74
Vendor	langchain-ai
Product	langgraphjs
Published	Feb 20, 2026
Last Updated	Feb 24, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Affected Versions

langchain-ai / langgraphjs

< 1.0.2

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/langchain-ai/langgraphjs/security/advisories/GHSA-5mx2-w598-339m github.com: https://github.com/langchain-ai/langgraphjs/pull/1943 github.com: https://github.com/langchain-ai/langgraphjs/commit/814c76dc3938d0f6f7e17ca3bc11d6a12270b2a1 github.com: https://github.com/langchain-ai/langgraphjs/releases/tag/@langchain/[email protected]