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vuln-cve/data/2026/39xxx/CVE-2026-39413.json
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"cveId": "CVE-2026-39413",
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"state": "PUBLISHED",
"assignerShortName": "GitHub_M",
"dateReserved": "2026-04-07T00:23:30.595Z",
"datePublished": "2026-04-08T19:41:23.909Z",
"dateUpdated": "2026-04-22T15:28:31.845Z"
},
"containers": {
"cna": {
"title": "LightRAG has a JWT Algorithm Confusion Vulnerability in LightRAG API",
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{
"descriptions": [
{
"cweId": "CWE-347",
"lang": "en",
"description": "CWE-347: Improper Verification of Cryptographic Signature",
"type": "CWE"
}
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}
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"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"
}
}
],
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{
"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"
}
],
"affected": [
{
"vendor": "HKUDS",
"product": "LightRAG",
"versions": [
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"version": "< 1.4.14",
"status": "affected"
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},
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{
"lang": "en",
"value": "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."
}
],
"source": {
"advisory": "GHSA-8ffj-4hx4-9pgf",
"discovery": "UNKNOWN"
}
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"other": {
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"timestamp": "2026-04-08T20:18:28.117904Z",
"id": "CVE-2026-39413",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
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}
],
"title": "CISA ADP Vulnrichment",
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"dateUpdated": "2026-04-08T20:18:55.606Z"
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"shortName": "CVE",
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},
"references": [
{
"url": "https://github.com/github/advisory-database/issues/7373"
}
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"title": "CVE Program Container",
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}