CVE-2026-54024

{"id": "CVE-2026-54024", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-54024", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-06-25T17:53:03.064873Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 2.8}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "danny-avila", "product": "LibreChat", "versions": [{"status": "affected", "version": "< 0.8.4-rc1"}]}]}], "published": "2026-06-25T17:16:40.153", "references": [{"url": "https://github.com/danny-avila/LibreChat/security/advisories/GHSA-52f6-fqwv-jccf", "tags": ["Exploit", "Vendor Advisory"], "source": "security-advisories@github.com"}, {"url": "https://github.com/danny-avila/LibreChat/security/advisories/GHSA-52f6-fqwv-jccf", "tags": ["Exploit", "Vendor Advisory"], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-770"}]}], "descriptions": [{"lang": "en", "value": "LibreChat is an enhanced ChatGPT clone that supports multiple AI providers. Prior to 0.8.4-rc1, the fix for CVE-2024-11171 (commit bb58a2d0) added limits: { fileSize } to createMulterInstance() in the file upload routes. However, the POST /api/convos/import endpoint uses a separate multer instance that was never updated with the same limits configuration. Combined with the application-level size check being disabled by default (the CONVERSATION_IMPORT_MAX_FILE_SIZE_BYTES env var is commented out in .env.example), an authenticated user can upload arbitrarily large files to exhaust server disk space and memory. This vulnerability is fixed in 0.8.4-rc1."}, {"lang": "es", "value": "LibreChat es un clon mejorado de ChatGPT que soporta m\u00faltiples proveedores de IA. Antes de la versi\u00f3n 0.8.4-rc1, la correcci\u00f3n para CVE-2024-11171 (commit bb58a2d0) a\u00f1adi\u00f3 l\u00edmites: { fileSize } a createMulterInstance() en las rutas de carga de archivos. Sin embargo, el endpoint POST /API/convos/import utiliza una instancia de multer separada que nunca fue actualizada con la misma configuraci\u00f3n de l\u00edmites. Combinado con la verificaci\u00f3n de tama\u00f1o a nivel de aplicaci\u00f3n deshabilitada por defecto (la variable de entorno CONVERSATION_IMPORT_MAX_FILE_SIZE_BYTES est\u00e1 comentada en .env.example), un usuario autenticado puede cargar archivos arbitrariamente grandes para agotar el espacio en disco y la memoria del servidor. Esta vulnerabilidad est\u00e1 corregida en la versi\u00f3n 0.8.4-rc1."}], "lastModified": "2026-10-25T22:10:00.150", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:librechat:librechat:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "77B80F25-E7C2-442E-98E3-F4462C40C74F", "versionEndIncluding": "0.8.3"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}