{"data":{"id":"f092b419-101b-4be5-97ed-68be2d95878e","title":"GHSA-mw35-8rx3-xf9r: Ray: Remote Code Execution via Parquet Arrow Extension Type Deserialization","summary":"Ray Data registers three custom Arrow extension types (ray.data.arrow_tensor, ray.data.arrow_tensor_v2, ray.data.arrow_variable_shaped_tensor) globally in PyArrow. When PyArrow reads a Parquet file with one of these types, Ray's __arrow_ext_deserialize__ passes the field metadata bytes to cloudpickle.loads(), enabling arbitrary code execution during schema parsing, before any row data is read. The source states that a related fix from May 2024 was reintroduced in July 2025 via PR #54831.","solution":"N/A -- no mitigation discussed in source.","labels":["security"],"sourceUrl":"https://github.com/advisories/GHSA-mw35-8rx3-xf9r","publishedAt":"2026-04-24T16:15:00.000Z","cveId":"CVE-2026-41486","cweIds":null,"cvssScore":null,"cvssSeverity":"high","severity":"high","attackType":["supply_chain"],"issueType":"vulnerability","affectedPackages":["ray@>= 2.49.0, < 2.55.0 (fixed: 2.55.0)"],"affectedPackageNames":["ray"],"affectedPackageRefs":["pypi:ray"],"affectedVendors":["HuggingFace"],"affectedVendorsRaw":["Ray","Ray Data","PyArrow","cloudpickle"],"classifierModel":"claude-haiku-5-5","classifierPromptVersion":"v4","summaryPromptVersion":"v2","headline":null,"headlinePromptVersion":null,"cvssVector":null,"attackVector":null,"attackComplexity":null,"privilegesRequired":null,"userInteraction":null,"exploitMaturity":"unknown","epssScore":0.00473,"epssCheckedAt":"2026-11-09T12:10:44.456Z","kevDateAdded":null,"advisoryAliases":["GHSA-mw35-8rx3-xf9r"],"affectedPackagesSource":null,"affectedPackagesCheckedAt":null,"patchAvailable":true,"disclosureDate":"2026-04-24T16:15:00.000Z","fixReleasedAt":"2026-04-15T04:31:24.774Z","daysToFix":-9,"fixCheckedAt":"2026-10-29T21:37:23.644Z","capecIds":null,"crossRefCount":0,"attackSophistication":"moderate","impactType":["confidentiality","integrity","availability"],"aiComponentTargeted":"framework","llmSpecific":false,"classifierConfidence":0.85,"researchCategory":null,"atlasIds":["AML.T0010"],"fixes":[{"ecosystem":"pypi","name":"ray","fixedVersion":"2.55.0","matchedVersion":"2.55.0","fixReleasedAt":"2026-04-15T04:31:24.774Z","daysToFix":-9,"match":"ecosystem","source":"tracked","status":"found","checkedAt":"2026-10-29T21:37:23.498Z"}]}}