{"data":{"id":"43c2e939-e377-4c99-957c-4713e8cb5cbe","title":"CVE-2026-9856: A vulnerability in huggingface/transformers versions <=5.8.0.dev0 allows an attacker to perform arbitrary file writes vi","summary":"A vulnerability in Hugging Face Transformers (a library for working with AI models) versions 5.8.0 and earlier allows attackers to write files anywhere on a user's computer through path traversal (a technique where an attacker uses special characters like '../' to escape the intended directory). The flaw exists in the `save_pretrained()` methods, which don't properly validate dictionary keys before using them as filenames, allowing attackers to distribute malicious model configuration files that execute arbitrary writes when downloaded and saved by victims.","solution":"N/A -- no mitigation discussed in source.","labels":["security"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-9856","publishedAt":"2026-08-02T16:16:25.413Z","cveId":"CVE-2026-9856","cweIds":["CWE-22"],"cvssScore":null,"cvssSeverity":null,"severity":"high","attackType":["supply_chain"],"issueType":"vulnerability","affectedPackages":null,"affectedVendors":["HuggingFace"],"affectedVendorsRaw":["HuggingFace","transformers","Idefics","Florence","Gemma","Phi","Qwen-VL"],"classifierModel":"claude-haiku-4-5-20251001","classifierPromptVersion":"v3","cvssVector":null,"attackVector":null,"attackComplexity":null,"privilegesRequired":null,"userInteraction":null,"exploitMaturity":"unknown","epssScore":0,"patchAvailable":null,"disclosureDate":"2026-08-02T16:16:25.413Z","capecIds":["CAPEC-126"],"crossRefCount":0,"attackSophistication":"moderate","impactType":["integrity","confidentiality"],"aiComponentTargeted":"framework","llmSpecific":false,"classifierConfidence":0.95,"researchCategory":null,"atlasIds":["AML.T0010"]}}