{"data":{"id":"39b3a7cd-4f99-49b4-9efc-e9b301d2316d","title":"Steering for Safety, Hijacking for Profit: Trojan Threats in the LLM Activation Steering Supply Chain","summary":"This paper audits eight mainstream open-source Steering plugin libraries and identifies three structural vulnerabilities: insufficient distribution integrity verification, excessive plugin privileges, and missing runtime monitoring. The authors build a malicious plugin, IDH, that keeps safety-refusal steering as its legitimate function while covertly steering outputs toward commercial recommendation manipulation, reaching an attack success rate of up to 97.8% across five LLMs and six brands in three commercial domains.","solution":"The authors propose a runtime defense framework that suppresses anomalous activation interventions and orthogonalizes inter-layer trajectory.","labels":["security","research"],"sourceUrl":"https://arxiv.org/abs/2610.35043v1","publishedAt":"2026-10-26T08:54:10.000Z","cveId":null,"cweIds":null,"cvssScore":null,"cvssSeverity":null,"severity":"info","attackType":["supply_chain","jailbreak"],"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":"2026-10-26T08:54:10.000Z","capecIds":null,"crossRefCount":0,"attackSophistication":"advanced","impactType":["integrity","safety"],"aiComponentTargeted":"plugin","llmSpecific":true,"classifierConfidence":0.95,"researchCategory":"preprint","atlasIds":["AML.T0010","AML.T0054"]}}