What’s Vulnerable › Vulnerabilities

CVE-2026-105799: LangChain: RediSearch Filter Injection via Unescaped Tag/Text Values

• Severity: low (CVSS 2.3 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-06 · updated 2026-10-06
• Weakness: CWE-943

Description

LangChain is a framework for building LLM-powered applications. Prior to 1.1.1, @langchain/redis does not escape attacker-controlled values in structured RediSearch TAG filters and structured RediSearch TEXT filters, allowing injected RediSearch syntax to alter or broaden the generated search query. When an application uses an attacker-influenceable filter as a tenant or document-access boundary, the modified query can expose indexed documents outside the attacker's intended scope. This issue is fixed in version 1.1.1.

Affected products

• langchain-ai langchainjs: before 1.1.1
• @langchain redis: before 1.1.1

References

• https://github.com/langchain-ai/langchainjs/commit/880e3969ea643a2147777a4d5e8bd606a697edf7
• https://github.com/langchain-ai/langchainjs/pull/10701
• https://github.com/langchain-ai/langchainjs/releases/tag/@langchain/redis@1.1.1
• https://github.com/langchain-ai/langchainjs/security/advisories/GHSA-5x6v-p487-7qh2

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