{"data":{"id":"b714ba87-eaad-4da7-8ce3-e97a297fb34f","title":"CVE-2021-39207: parlai is a framework for training and evaluating AI models on a variety of openly available dialogue datasets. In…","summary":"ParlAI, a framework for training and evaluating AI models on open dialogue datasets, is vulnerable to a YAML deserialization attack in affected versions. The flaw comes from unsafe loading, which leads to arbitrary code execution.","solution":"Patched by avoiding unsafe loading; users should update to version above v1.1.0. If upgrading is not possible, change the Loader to SafeLoader as a workaround. See commit 507d066ef432ea27d3e201da08009872a2f37725 for details.","labels":["security"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2021-39207","publishedAt":"2021-09-10T23:15:07.343Z","cveId":"CVE-2021-39207","cweIds":["CWE-502"],"cvssScore":"8.4","cvssSeverity":"high","severity":"high","attackType":["other"],"issueType":"vulnerability","affectedPackages":["parlai@< 1.1.0 (fixed: 1.1.0)"],"affectedPackageNames":["parlai"],"affectedPackageRefs":["pypi:parlai"],"affectedVendors":[],"affectedVendorsRaw":["ParlAI"],"classifierModel":"claude-haiku-5-5","classifierPromptVersion":"v4","summaryPromptVersion":"v2","headline":"parlai arbitrary code execution through unsafe YAML deserialization","headlinePromptVersion":"h1","cvssVector":null,"attackVector":null,"attackComplexity":null,"privilegesRequired":null,"userInteraction":null,"exploitMaturity":"unknown","epssScore":0.01794,"epssCheckedAt":"2026-11-04T12:08:35.508Z","kevDateAdded":null,"advisoryAliases":["GHSA-m87f-9fvv-2mgg"],"affectedPackagesSource":"ghsa","affectedPackagesCheckedAt":"2026-10-10T03:59:17.078Z","patchAvailable":true,"disclosureDate":null,"fixReleasedAt":"2021-03-01T21:11:23.124Z","daysToFix":-193,"fixCheckedAt":"2026-10-29T21:50:14.257Z","capecIds":["CAPEC-586"],"crossRefCount":0,"attackSophistication":"moderate","impactType":["confidentiality","integrity","availability","safety"],"aiComponentTargeted":"framework","llmSpecific":false,"classifierConfidence":0.95,"researchCategory":null,"atlasIds":null,"fixes":[{"ecosystem":"pypi","name":"parlai","fixedVersion":"1.1.0","matchedVersion":"1.1.0","fixReleasedAt":"2021-03-01T21:11:23.124Z","daysToFix":-193,"match":"ecosystem","source":"registry","status":"found","checkedAt":"2026-10-29T21:50:14.099Z"}]}}