CVE-2026-48763

{"id": "CVE-2026-48763", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-48763", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-08-12T12:50:20.706540Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.2, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "LOW", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 4.2, "exploitabilityScore": 3.9}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "baptisteArno", "product": "typebot.io", "versions": [{"status": "affected", "version": "< 3.17.0"}]}]}], "published": "2026-08-11T21:17:36.810", "references": [{"url": "https://github.com/baptisteArno/typebot.io/commit/7ae4c007d0987d2ca907b47e1b7418db62b8a157", "source": "security-advisories@github.com"}, {"url": "https://github.com/baptisteArno/typebot.io/pull/2459", "source": "security-advisories@github.com"}, {"url": "https://github.com/baptisteArno/typebot.io/releases/tag/v3.17.0", "source": "security-advisories@github.com"}, {"url": "https://github.com/baptisteArno/typebot.io/security/advisories/GHSA-m7f5-3wcm-x2c4", "source": "security-advisories@github.com"}, {"url": "https://github.com/baptisteArno/typebot.io/security/advisories/GHSA-m7f5-3wcm-x2c4", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-862"}]}], "descriptions": [{"lang": "en", "value": "TypeBot is a chatbot builder tool. Versions prior to 3.17.0 expose a deprecated public upload endpoint at `GET /api/v1/typebots/{typebotId}/blocks/{blockId}/storage/upload-url` that accepts an attacker-controlled `filePath` and returns a presigned S3 `PUT` URL for that exact key. Because the endpoint only checks that the referenced typebot is public and that the referenced block is a file input block, an unauthenticated attacker who knows a valid public `typebotId` and `blockId` can request presigned upload URLs for arbitrary objects in the shared bucket, including `private/...` and other tenants' `public/...` paths. Version 3.17.0 fixes this issue."}, {"lang": "es", "value": "TypeBot es una herramienta de creaci\u00f3n de chatbots. Las versiones anteriores a la 3.17.0 exponen un endpoint de carga p\u00fablico obsoleto en \u201cGET /api/v1/typebots/{typebotId}/blocks/{blockId}/storage/upload-url\u201d que acepta un \u201cfilePath\u201d controlado por el atacante y devuelve una URL \u201cPUT\u201d de S3 pre-firmada para esa clave exacta. Debido a que el endpoint solo verifica que el typebot referenciado es p\u00fablico y que el bloque referenciado es un bloque de entrada de archivo, un atacante no autenticado que conoce un \u201ctypebotId\u201d y un \u201cblockId\u201d p\u00fablicos v\u00e1lidos puede solicitar URLs de carga pre-firmadas para objetos arbitrarios en el bucket compartido, incluyendo \u201cprivate/...\u201d y rutas \u201cpublic/...\u201d de otros inquilinos. La versi\u00f3n 3.17.0 corrige este problema."}], "lastModified": "2026-10-23T20:10:00.160", "sourceIdentifier": "security-advisories@github.com"}