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CVE-2026-39413

LightRAG has a JWT Algorithm Confusion Vulnerability in LightRAG API PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
HKUDS / LightRAGaffected < 1.4.14

CWE

CWE-347

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.

CVE

No English description supplied.