AIKIDO-2026-10456
lightrag-hku is vulnerable to Cypher Injection
82
High Risk
This Affects:
lightrag-hkuTL;DR
The API reads the default workspace from --workspace / WORKSPACE during CLI parsing and can override it per request using the LIGHTRAG-WORKSPACE header. Before the fix, those values were passed through without normalizing the character set. The workspace string is used when building graph storage behavior (including Cypher-oriented backends); malicious content in the identifier can influence query construction. The fix applies the same allowlist-style normalization ([a-zA-Z0-9_], replacing other characters with _) immediately after resolving CLI/config and inside get_workspace_from_request, and logs when rewriting occurs.
Who does this affect?
You are affected if you are using a version that falls within the vulnerable range.
Background info
lightrag-hku is vulnerable to Cypher Injection in versions 1.4.0 - 1.4.10.
How to fix this
Upgrade the lightrag-hku library to the patch version.
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