CVE Explorer
CVE-2026-39413
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.
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"product":"LightRAG","vendor":"HKUDS","versions":[{"status":"affected","version":"< 1.4.14"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:6b971cd2046175280f91ffd366d379f8e6f9ab743a10cf3891ac961fc3555c51 · sha256:2fe1521c10b3edfc… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":4.2,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"HIGH","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:6b971cd2046175280f91ffd366d379f8e6f9ab743a10cf3891ac961fc3555c51 · sha256:2fe1521c10b3edfc… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-347","description":"CWE-347: Improper Verification of Cryptographic Signature","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:6b971cd2046175280f91ffd366d379f8e6f9ab743a10cf3891ac961fc3555c51 · sha256:2fe1521c10b3edfc… · /containers/cna/problemTypes/0/descriptions/0
Source references
2 source assertions{"name":"https://github.com/HKUDS/LightRAG/security/advisories/GHSA-8ffj-4hx4-9pgf","tags":["x_refsource_CONFIRM"],"url":"https://github.com/HKUDS/LightRAG/security/advisories/GHSA-8ffj-4hx4-9pgf"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:6b971cd2046175280f91ffd366d379f8e6f9ab743a10cf3891ac961fc3555c51 · sha256:2fe1521c10b3edfc… · /containers/cna/references/0
{"url":"https://github.com/github/advisory-database/issues/7373"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:6b971cd2046175280f91ffd366d379f8e6f9ab743a10cf3891ac961fc3555c51 · sha256:2fe1521c10b3edfc… · /containers/adp/1/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.