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CVSS v3.1
4.2
EPSS
0.17%
Published
Apr 8, 2026
Modified
Jul 24, 2026
Public PoC / Exploit (1)
All weaponized →Links to public security research (Exploit-DB, Nuclei, Trickest, GitHub) for defensive use only.
Description
LightRAG provides simple and fast retrieval-augmented generation. Prior to 1.4.14, the LightRAG API is vulnerable to a JWT algorithm confusion attack where an attacker can forge tokens by specifying 'alg': 'none' in the JWT header. Since the jwt.decode() call does not explicitly deny the 'none' algorithm, a crafted token without a signature will be accepted as valid, leading to unauthorized access. This vulnerability is fixed in 1.4.14.
CVSS Vector
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:N/A:NWeaknesses (CWE)
Affected Products (1)
References (2)