CVE-2025-3108

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{"affected": [{"affectedData": [{"product": "run-llama/llama_index", "vendor": "run-llama", "versions": [{"lessThan": "v0.12.41", "status": "affected", "version": "unspecified", "versionType": "custom"}]}], "source": "security@huntr.dev"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:llamaindex:llamaindex:*:*:*:*:*:*:*:*", "matchCriteriaId": "D4D93641-C6B4-4DA6-84A2-0676E69EEFFB", "versionEndExcluding": "0.12.41", "versionStartIncluding": "0.12.27", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A critical deserialization vulnerability exists in the run-llama/llama_index library's JsonPickleSerializer component, affecting versions v0.12.27 through v0.12.40. This vulnerability allows remote code execution due to an insecure fallback to Python's pickle module. JsonPickleSerializer prioritizes deserialization using pickle.loads(), which can execute arbitrary code when processing untrusted data. Attackers can exploit this by crafting malicious payloads to achieve full system compromise. The root cause includes an insecure fallback mechanism, lack of validation or safeguards, misleading design, and violation of Python security guidelines."}, {"lang": "es", "value": "Existe una vulnerabilidad cr\u00edtica de deserializaci\u00f3n en el componente JsonPickleSerializer de la librer\u00eda run-llama/llama_index, que afecta a las versiones v0.12.27 a v0.12.40. Esta vulnerabilidad permite la ejecuci\u00f3n remota de c\u00f3digo debido a un mecanismo de respaldo inseguro al m\u00f3dulo pickle de Python. JsonPickleSerializer prioriza la deserializaci\u00f3n mediante pickle.loads(), que puede ejecutar c\u00f3digo arbitrario al procesar datos no confiables. Los atacantes pueden explotar esto manipulando payloads maliciosos para comprometer completamente el sistema. La causa principal incluye un mecanismo de respaldo inseguro, falta de validaci\u00f3n o salvaguardas, un dise\u00f1o enga\u00f1oso y la violaci\u00f3n de las directrices de seguridad de Python."}], "id": "CVE-2025-3108", "lastModified": "2026-06-17T09:19:12.060", "metrics": {"cvssMetricV30": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 5.0, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L", "version": "3.0"}, "exploitabilityScore": 1.6, "impactScore": 3.4, "source": "security@huntr.dev", "type": "Secondary"}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.6, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-3108", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2025-07-07T13:42:15.611862Z", "version": "2.0.3"}}]}, "published": "2025-07-06T23:15:21.777", "references": [{"source": "security@huntr.dev", "tags": ["Patch"], "url": "https://github.com/run-llama/llama_index/commit/702e4340623092fac4cf2fe95eb9465034856da3"}, {"source": "security@huntr.dev", "tags": ["Exploit", "Third Party Advisory"], "url": "https://huntr.com/bounties/9b55a5e8-74e6-4241-b323-e360dc8b110a"}], "sourceIdentifier": "security@huntr.dev", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-1112"}], "source": "security@huntr.dev", "type": "Secondary"}]}

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