{"data":{"id":"4302ab32-a89a-4faf-8892-2e04bed0aa91","title":"LLM Trojans that Increase Response Lengths and Cost","summary":"This paper proposes a defense against a data-poisoning attack that plants a Trojan in an LLM. When the trigger appears in the prompt, the Trojan lengthens the response and so raises the user's token cost. The authors show that a subtle Trojan can activate on semantically similar instructions of an instruction fine-tuned LLM.","solution":"The source text describes a defense against this attack but does not state its specific mitigation details in the excerpt provided.","labels":["security","research"],"sourceUrl":"https://arxiv.org/abs/2610.24784v1","publishedAt":"2026-10-17T17:12:01.000Z","cveId":null,"cweIds":null,"cvssScore":null,"cvssSeverity":null,"severity":"low","attackType":["model_poisoning","denial_of_service"],"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":"2026-10-17T17:12:01.000Z","capecIds":null,"crossRefCount":0,"attackSophistication":"advanced","impactType":["availability","integrity"],"aiComponentTargeted":"model","llmSpecific":true,"classifierConfidence":0.95,"researchCategory":"preprint","atlasIds":null}}