CyberRota Analysis
AI-GeneratedLightRAG versions prior to 1.5.5 are vulnerable to a flaw in the handling of IPv4 addresses embedded in IPv6 transition wrappers, which can allow an attacker to upload a Markdown or textpack document containing malicious external image URLs. This vulnerability can lead to unauthorized access to internal resources in environments utilizing NAT64 or DNS64 routing. Organizations using LightRAG should prioritize upgrading to version 1.5.5 to mitigate the risk of exploitation.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
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Original NVD Description
LightRAG provides simple and fast retrieval-augmented generation. Prior to 1.5.5, _validated_addresses in lightrag/parser/markdown/parser.py evaluates the literal resolved address with ipaddress.is_global without consistently classifying an IPv4 address embedded in an IPv6 transition wrapper. A caller who can upload a Markdown or textpack document can supply an external image URL using NAT64 64:ff9b::/96 or an IPv4-compatible form that embeds a loopback, private, or cloud-metadata IPv4 address. On a deployment with compatible NAT64 or DNS64 routing, _download and _build_guarded_opener accept the wrapper and fetch the internal resource, whose body is then ingested. Current interpreter behavior already blocks some RFC 8215 and 6to4 forms, but the fixed guard handles all documented wrappers without becoming more permissive than the standard library. This issue is fixed in version 1.5.5.