{"data":{"id":"2c036420-00e7-42d9-8aeb-20e1d78e115f","title":"Badpatches: routing-aware backdoor attacks on vision mixture-of-experts","summary":"Researchers introduce BadPatches, a routing-aware backdoor attack for patch-based mixture-of-experts (pMoE) vision models and MoE-based vision transformers. The attack places triggers inside targeted image patches so they reach the active experts, achieving over 83.2% attack success rate at a 0.01% poisoning rate and 96.8% at 0.05%, with clean accuracy preserved. The attack remains effective in gray-box settings, and the authors find that fine-pruning alone does not remove it, requiring a fine-tuning stage.","solution":"Fine-pruning alone is insufficient to mitigate the attack; successful backdoor removal strictly requires the fine-tuning stage. The authors call for routing-aware defenses.","labels":["security","research"],"sourceUrl":"https://doi.org/10.1007/s10207-026-01320-3","publishedAt":"2026-10-16T00:00:00.000Z","cveId":null,"cweIds":null,"cvssScore":null,"cvssSeverity":null,"severity":"info","attackType":["model_poisoning"],"issueType":"research","affectedPackages":null,"affectedPackageNames":null,"affectedPackageRefs":null,"affectedVendors":[],"affectedVendorsRaw":[],"classifierModel":"claude-haiku-5-5","classifierPromptVersion":"v4","summaryPromptVersion":"v2","headline":null,"headlinePromptVersion":null,"cvssVector":null,"attackVector":null,"attackComplexity":null,"privilegesRequired":null,"userInteraction":null,"exploitMaturity":null,"epssScore":null,"epssCheckedAt":null,"kevDateAdded":null,"advisoryAliases":null,"affectedPackagesSource":null,"affectedPackagesCheckedAt":null,"patchAvailable":null,"disclosureDate":"2026-10-16T00:00:00.000Z","capecIds":null,"crossRefCount":0,"attackSophistication":"advanced","impactType":["integrity","safety"],"aiComponentTargeted":"model","llmSpecific":false,"classifierConfidence":0.95,"researchCategory":"peer_reviewed","atlasIds":null}}