by Kastro CVE-2026-85734
HKUDS LightRAG — LightRAG: No Rate Limiting on /login Endpoint Allows Brute-Force Attacks
Description · from the CVE record
LightRAG provides simple and fast retrieval-augmented generation. Prior to 1.5.5, the POST /login endpoint in lightrag/api/lightrag_server.py does not impose a rate limit, account lockout, delay, or counter for failed authentication attempts. A network attacker can submit password guesses at full request speed until a valid account password is found. Successful credential recovery grants authenticated access to documents, the knowledge graph, and administrative operations. This issue is fixed in version 1.5.5.
Affected
ProductAffectedFixed inSource
LightRAG< 1.5.5–CNA
Scores by source
GitHub_M (CNA)9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total