{"data":{"id":"5ab26a62-bd52-4656-b7fb-c78d715f5c9e","title":"CVE-2026-66065: Ouroboros is a local-first runtime for AI coding agents that records their actions and applies user-defined policies to ","summary":"Ouroboros, a local-first runtime for AI coding agents that enforces security policies, had a vulnerability in versions before 0.42.1 where its denylist (a list of blocked actions) was incomplete. A malicious cloned repository could bypass security controls by using environment variables (configuration settings stored in a .env file) that weren't on the denylist, allowing arbitrary command execution (RCE, where an attacker runs commands on a system they don't own). The vulnerability existed because previous fixes missed several environment variable keys that could be exploited to weaken or bypass the approval system.","solution":"This issue has been fixed in version 0.42.1. Upgrade to this version or later.","labels":["security"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-66065","publishedAt":"2026-08-03T21:16:41.193Z","cveId":"CVE-2026-66065","cweIds":["CWE-15","CWE-94"],"cvssScore":null,"cvssSeverity":null,"severity":"high","attackType":["supply_chain"],"issueType":"vulnerability","affectedPackages":null,"affectedVendors":[],"affectedVendorsRaw":["Ouroboros"],"classifierModel":"claude-haiku-4-5-20251001","classifierPromptVersion":"v3","cvssVector":null,"attackVector":null,"attackComplexity":null,"privilegesRequired":null,"userInteraction":null,"exploitMaturity":"unknown","epssScore":0,"patchAvailable":null,"disclosureDate":"2026-08-03T21:16:41.193Z","capecIds":["CAPEC-242"],"crossRefCount":0,"attackSophistication":"moderate","impactType":["integrity","confidentiality","availability"],"aiComponentTargeted":"agent","llmSpecific":true,"classifierConfidence":0.85,"researchCategory":null,"atlasIds":["AML.T0010"]}}