{"data":{"id":"627b2151-662c-4217-a626-fe5af4623684","title":"Trigger Without Trace: Toward Stealthy Backdoor Attack on Text-to-Image Diffusion Models","summary":"Researchers propose Trigger without Trace (TwT), a stealthy backdoor attack on text-to-image diffusion models. It uses syntactic structures as triggers to break semantic consistency and applies a Kernel Maximum Mean Discrepancy (KMMD) regularizer to align cross-attention distributions with benign samples. The method reports a 97.5% attack success rate and over 98% of backdoor samples bypassing three state-of-the-art detection mechanisms.","solution":"N/A -- no mitigation discussed in source.","labels":["security","research"],"sourceUrl":"http://ieeexplore.ieee.org/document/11527385","publishedAt":"2026-05-20T13:19:15.000Z","cveId":null,"cweIds":null,"cvssScore":null,"cvssSeverity":null,"severity":"info","attackType":["other"],"issueType":"research","affectedPackages":null,"affectedPackageNames":null,"affectedPackageRefs":null,"affectedVendors":[],"affectedVendorsRaw":["text-to-image diffusion models"],"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":"2026-05-20T13:19:15.000Z","fixReleasedAt":null,"daysToFix":null,"fixCheckedAt":null,"capecIds":null,"crossRefCount":0,"attackSophistication":"advanced","impactType":["integrity","safety"],"aiComponentTargeted":"model","llmSpecific":false,"classifierConfidence":0.93,"researchCategory":"peer_reviewed","atlasIds":null}}