{"data":{"id":"575c10a0-d4b3-4273-830e-f3b12f017021","title":"Stealthy Targeted Poisoning Attacks in Vertical Split Learning via Embedding Model Manipulation","summary":"Researchers present TPA-VSL, a targeted poisoning attack against vertical split learning, where a model is partitioned between clients and a server. The attack manipulates the embedding model directly, mapping the embedding of a targeted sample to an attacker-chosen class without an obvious trigger pattern. Its two components use diffusion models guided by a multimodal encoder-decoder to mimic the target model, then align the targeted samples' embeddings with those of the desired class. The authors report a 30% higher attack success rate on average than baseline attacks.","solution":"N/A -- no mitigation discussed in source.","labels":["security","research"],"sourceUrl":"http://ieeexplore.ieee.org/document/11424007","publishedAt":"2026-03-06T13:18:44.000Z","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":"2026-03-06T13:18:44.000Z","fixReleasedAt":null,"daysToFix":null,"fixCheckedAt":null,"capecIds":null,"crossRefCount":0,"attackSophistication":"advanced","impactType":["integrity"],"aiComponentTargeted":"model","llmSpecific":false,"classifierConfidence":0.95,"researchCategory":"peer_reviewed","atlasIds":null}}