{"data":{"id":"e3a0ff48-286b-4eda-aa12-c3134db6591d","title":"v5.5.0","summary":"Version 5.5.0 adds new security techniques documenting threats to AI systems, including AI agent tool poisoning (when attackers corrupt tools that AI agents use), supply chain attacks, and cost harvesting (depleting computing resources through expensive queries). It also updates existing techniques and mitigations related to code signing and monitoring AI agent behavior.","solution":"N/A -- no mitigation discussed in source.","labels":["security","research"],"sourceUrl":"https://github.com/mitre-atlas/atlas-data/releases/tag/v5.5.0","publishedAt":"2026-03-31T03:27:15.000Z","cveId":null,"cweIds":null,"cvssScore":null,"cvssSeverity":null,"severity":"info","attackType":["supply_chain","model_poisoning","rag_poisoning","data_extraction","prompt_injection"],"issueType":"research","affectedPackages":null,"affectedVendors":["Anthropic"],"affectedVendorsRaw":["Anthropic Claude","ClawdBot","Postmark MCP Server"],"classifierModel":"claude-haiku-4-5-20251001","classifierPromptVersion":"v3","cvssVector":null,"attackVector":null,"attackComplexity":null,"privilegesRequired":null,"userInteraction":null,"exploitMaturity":null,"epssScore":null,"patchAvailable":null,"disclosureDate":"2026-03-31T03:27:15.000Z","capecIds":null,"crossRefCount":0,"attackSophistication":"moderate","impactType":["confidentiality","integrity","availability"],"aiComponentTargeted":"agent","llmSpecific":true,"classifierConfidence":0.85,"researchCategory":"industry","atlasIds":null}}