CVE-2026-61684

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{"affected": [{"affectedData": [{"product": "FastGPT", "vendor": "labring", "versions": [{"status": "affected", "version": "= 4.15.0-beta4"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "FastGPT is a knowledge-based AI application platform. In 4.15.0-beta4, FastGPT plugin invoke reverse-call endpoints under /api/invoke/* authenticate only by verifying a JWT signed with INVOKE_TOKEN_SECRET, which defaults to the constant string token and was not set in official deployment templates. An unauthenticated attacker can self-sign an HS256 JWT and reach /api/invoke/userInfo to disclose cross-tenant user PII by attacker-supplied tmbId values, or /api/invoke/fileUpload to write attacker-controlled content into chat files. This issue is fixed in version 4.15.0-beta5."}, {"lang": "es", "value": "FastGPT es una plataforma de aplicaci\u00f3n de IA basada en conocimiento. En 4.15.0-beta4, los endpoints de invocaci\u00f3n de llamadas inversas del plugin de FastGPT bajo /api/invoke/* se autentican solo verificando un JWT firmado con INVOKE_TOKEN_SECRET, que por defecto es la cadena constante \u2019token\u2019 y no se configur\u00f3 en las plantillas de despliegue oficiales. Un atacante no autenticado puede auto-firmar un JWT HS256 y acceder a /api/invoke/userInfo para divulgar PII de usuarios entre inquilinos mediante valores tmbId proporcionados por el atacante, o a /api/invoke/fileUpload para escribir contenido controlado por el atacante en archivos de chat. Este problema est\u00e1 solucionado en la versi\u00f3n 4.15.0-beta5."}], "id": "CVE-2026-61684", "lastModified": "2026-10-24T21:10:00.130", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "LOW", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-61684", "options": [{"exploitation": "poc"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-07-15T15:07:14.784543Z", "version": "2.0.3"}}]}, "published": "2026-07-15T15:16:48.100", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/labring/FastGPT/commit/f5f1e58b25571b7107ca49d9bf96bb2b0e0a620a"}, {"source": "security-advisories@github.com", "url": "https://github.com/labring/FastGPT/pull/7170"}, {"source": "security-advisories@github.com", "url": "https://github.com/labring/FastGPT/releases/tag/v4.15.0-beta5"}, {"source": "security-advisories@github.com", "url": "https://github.com/labring/FastGPT/security/advisories/GHSA-w732-rq8c-chc8"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "url": "https://github.com/labring/FastGPT/security/advisories/GHSA-w732-rq8c-chc8"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-798"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

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