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.
Metrics
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History
Wed, 22 Apr 2026 16:30:00 +0000
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Mon, 20 Apr 2026 15:00:00 +0000
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| CPEs | cpe:2.3:a:hkuds:lightrag:*:*:*:*:*:*:*:* |
Thu, 09 Apr 2026 08:30:00 +0000
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Hkuds
Hkuds lightrag |
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Hkuds
Hkuds lightrag |
Wed, 08 Apr 2026 21:15:00 +0000
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ssvc
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Wed, 08 Apr 2026 20:15:00 +0000
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| 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. | |
| Title | LightRAG has a JWT Algorithm Confusion Vulnerability in LightRAG API | |
| Weaknesses | CWE-347 | |
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cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-04-08T19:41:23.909Z
Updated: 2026-04-22T15:28:31.845Z
Reserved: 2026-04-07T00:23:30.595Z
Link: CVE-2026-39413
Updated: 2026-04-22T15:28:31.845Z
Status : Modified
Published: 2026-04-08T20:16:25.877
Modified: 2026-04-22T16:16:58.387
Link: CVE-2026-39413
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