Information Exposure Affecting lightrag-hku package, versions [,1.5.5)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-PYTHON-LIGHTRAGHKU-21693627
- published24 Oct 2026
- disclosed22 Sept 2026
- creditUnknown
Introduced: 22 Sep 2026
CVE-2026-85709 (opens in a new tab)How to fix?
Upgrade lightrag-hku to version 1.5.5 or higher.
Overview
lightrag-hku is a LightRAG: Simple and Fast Retrieval-Augmented Generation
Affected versions of this package are vulnerable to Information Exposure via bare raw-exception passthrough in the _resolve_text_chunking validation within document_routes.py, where unhandled ValueError exceptions raised during chunking configuration validation in the /documents/text and /documents/texts handlers are passed directly as HTTP 422 response detail strings via detail=str(exc). An unauthenticated remote attacker can trigger these error paths by submitting invalid chunking configuration parameters, causing internal exception messages to be reflected in API responses and potentially exposing implementation details.