LangChain: RediSearch Filter Injection via Unescaped Tag/Text Values
Summary
@langchain/redis did not properly escape values used to construct structured RediSearch TAG and TEXT filters. An application that passes attacker-controlled values into these filters could allow the attacker to alter the resulting search query.
Affected versions
@langchain/redis versions through 1.1.0 are affected.
Impact
An attacker who can control values passed to the affected structured TAG or TEXT filters can inject RediSearch syntax and alter or broaden the resulting search query. In applications that use an attacker-influenceable filter as a tenant or document-access boundary, this may expose indexed documents outside the attacker's intended scope.
Remediation
Upgrade to @langchain/redis 1.1.1 or later.
The fix escapes RediSearch special characters, validates field names and structured filter types, and applies these protections across fluent filter builders and custom-schema query construction.
Credits
Thanks to @thesanjok and @shovanchakraborty for reporting this issue.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | @langchain/redis | < 1.1.1 | 1.1.1 |
References
- https://github.com/langchain-ai/langchainjs/security/advisories/GHSA-5x6v-p487-7qh2
- https://nvd.nist.gov/vuln/detail/CVE-2026-105799
- https://github.com/langchain-ai/langchainjs/pull/10701
- https://github.com/langchain-ai/langchainjs/commit/880e3969ea643a2147777a4d5e8bd606a697edf7
- https://github.com/langchain-ai/langchainjs
- https://github.com/langchain-ai/langchainjs/releases/tag/@langchain/redis@1.1.1
- CVSS vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N- Weakness (CWE)
CWE-943- Platform
- npm
- Package
@langchain/redis- Disclosed
- 06.10.2026
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-5x6v-p487-7qh2 - CC BY 4.0
Vulnerability history: @langchain/redis
All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.
This is the only known vulnerability of this package.
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