{"data":{"id":"78361bda-9cc4-4c9c-8c7f-b131f2d134fc","title":"CVE-2026-31253: The flash-attention training framework thru commit e724e2588cbe754beb97cf7c011b5e7e34119e62 (2025-13-04) contains an…","summary":"CVE-2026-31253 affects the flash-attention training framework through commit e724e2588cbe754beb97cf7c011b5e7e34119e62 (2025-13-04), which contains an insecure deserialization flaw (CWE-502) in its checkpoint loading. The load_checkpoint() function in checkpoint.py and the checkpoint loading code in eval.py call torch.load() without weights_only=True, so arbitrary Python objects can be deserialized via the pickle module. A victim who loads a maliciously crafted checkpoint during model warmstarting or evaluation has arbitrary code executed on their system.","solution":"N/A -- no mitigation discussed in source.","labels":["security"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-31253","publishedAt":"2026-05-11T17:16:20.307Z","cveId":"CVE-2026-31253","cweIds":null,"cvssScore":null,"cvssSeverity":null,"severity":"high","attackType":["supply_chain"],"issueType":"vulnerability","affectedPackages":["flash_attn@<= 2.8.3"],"affectedPackageNames":["flash-attn"],"affectedPackageRefs":["pypi:flash-attn"],"affectedVendors":[],"affectedVendorsRaw":["flash-attention"],"classifierModel":"claude-haiku-5-5","classifierPromptVersion":"v4","summaryPromptVersion":"v2","headline":"flash-attention insecure deserialization in checkpoint loading via torch.load","headlinePromptVersion":"h1","cvssVector":null,"attackVector":null,"attackComplexity":null,"privilegesRequired":null,"userInteraction":null,"exploitMaturity":"unknown","epssScore":0.00218,"epssCheckedAt":"2026-11-07T06:14:03.427Z","kevDateAdded":null,"advisoryAliases":["GHSA-7g5w-pq96-8c5w"],"affectedPackagesSource":"ghsa","affectedPackagesCheckedAt":"2026-10-10T03:48:39.411Z","patchAvailable":null,"disclosureDate":"2026-05-11T17:16:20.307Z","fixReleasedAt":null,"daysToFix":null,"fixCheckedAt":null,"capecIds":null,"crossRefCount":0,"attackSophistication":"trivial","impactType":["confidentiality","integrity","availability"],"aiComponentTargeted":"framework","llmSpecific":false,"classifierConfidence":0.85,"researchCategory":null,"atlasIds":["AML.T0010"],"fixes":[]}}