{"data":{"id":"b6fd3e47-cb60-4c9c-8f66-41e0d3fe347d","title":"RePAIR: Inverting Backdoor Attacks in Semantic Segmentation","summary":"RePAIR is a post-hoc, label-free defense against backdoor attacks on semantic segmentation models, which redirect pixels of a victim class to an attacker-chosen target class when a trigger is present. It infers the victim-target relation from an unlabeled image pool, then localizes suspicious pixels and applies feature-space and output corrections toward the inferred victim semantics. Experiments across segmentation architectures and attack settings show it substantially reduces attack success while largely preserving clean performance.","solution":"RePAIR is the defense proposed by the source, a post-hoc, label-free, attack-unaware method that requires no retraining or model modification. The source does not describe a separate fix or configuration step.","labels":["security","research"],"sourceUrl":"https://arxiv.org/abs/2610.37015v1","publishedAt":"2026-10-27T10:53:47.000Z","cveId":null,"cweIds":null,"cvssScore":null,"cvssSeverity":null,"severity":"info","attackType":["other"],"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":"2026-10-27T10:53:47.000Z","capecIds":null,"crossRefCount":0,"attackSophistication":"advanced","impactType":["integrity","safety"],"aiComponentTargeted":"model","llmSpecific":false,"classifierConfidence":0.95,"researchCategory":"preprint","atlasIds":null}}