{"data":{"id":"17b7dfc4-1c80-461b-baeb-b9b64c78ee11","title":"Anthropic’s Fable 5 Model Jailbroken Within Days","summary":"Anthropic's Fable 5 model was successfully jailbroken (tricked into bypassing its safety restrictions) shortly after its release, despite the company's claims that it had been thoroughly tested for security. The source criticizes overconfident security statements, noting that even rigorous testing cannot guarantee that vulnerabilities will not be discovered.","solution":"N/A -- no mitigation discussed in source.","labels":["security","safety"],"sourceUrl":"https://www.schneier.com/blog/archives/2026/06/anthropics-fable-5-model-jailbroken-within-days.html","publishedAt":"2026-06-23T11:03:07.000Z","cveId":null,"cweIds":null,"cvssScore":null,"cvssSeverity":null,"severity":"info","attackType":["jailbreak"],"issueType":"news","affectedPackages":null,"affectedVendors":["Anthropic"],"affectedVendorsRaw":["Anthropic","Fable 5"],"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":"2026-06-23T11:03:07.000Z","capecIds":null,"crossRefCount":0,"attackSophistication":"moderate","impactType":["safety"],"aiComponentTargeted":"model","llmSpecific":true,"classifierConfidence":0.65,"researchCategory":null,"atlasIds":null}}