{"data":{"id":"41322181-45c4-4bd7-9149-5570c7f0e10a","title":"GHSA-jv2h-4p9v-wf5w: ouroboros-ai: Incomplete fix of CVE-2026-47211: untrusted project .env can still reach RCE via omitted execution-routing keys","summary":"GHSA-jv2h-4p9v-wf5w affects ouroboros-ai, where the fix for CVE-2026-47211 in 0.39.0 left the `_UNTRUSTED_ENV_DENYLIST` incomplete. A malicious cloned repository can ship a `.env` that is auto-loaded at import and set keys such as `CODEX_HOME`, `OUROBOROS_MCP_CONFIG` and `OUROBOROS_ALLOW_LOCAL_TRANSPORT`, which lead to arbitrary command execution. The MCP bridge also auto-loaded `./.ouroboros/mcp_servers.yaml` from the working directory, so running `ooo` inside a malicious repo could spawn the committed server `command` without any `.env`.","solution":"Fixed in 0.42.1. All listed keys were added to `_UNTRUSTED_ENV_DENYLIST`, the cwd auto-discovery branch was removed, and the regression suite now derives from the source denylist. Workaround: do not run Ouroboros from an untrusted or cloned repository directory, and remove any project-directory `.env` and `./.ouroboros/mcp_servers.yaml` before running.","labels":["security"],"sourceUrl":"https://github.com/advisories/GHSA-jv2h-4p9v-wf5w","publishedAt":"2026-06-19T15:12:25.000Z","cveId":null,"cweIds":null,"cvssScore":null,"cvssSeverity":"high","severity":"high","attackType":["other"],"issueType":"vulnerability","affectedPackages":["ouroboros-ai@<= 0.42.0 (fixed: 0.42.1)"],"affectedPackageNames":["ouroboros-ai"],"affectedPackageRefs":["pypi:ouroboros-ai"],"affectedVendors":[],"affectedVendorsRaw":["Ouroboros","Codex","OpenCode","GitHub Copilot","MCP"],"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":["GHSA-jv2h-4p9v-wf5w"],"affectedPackagesSource":null,"affectedPackagesCheckedAt":null,"patchAvailable":true,"disclosureDate":"2026-06-19T15:12:25.000Z","fixReleasedAt":"2026-06-18T14:18:24.920Z","daysToFix":-1,"fixCheckedAt":"2026-10-29T21:34:14.577Z","capecIds":null,"crossRefCount":0,"attackSophistication":"trivial","impactType":["confidentiality","integrity","availability","safety"],"aiComponentTargeted":"agent","llmSpecific":false,"classifierConfidence":0.85,"researchCategory":null,"atlasIds":null,"fixes":[{"ecosystem":"pypi","name":"ouroboros-ai","fixedVersion":"0.42.1","matchedVersion":"0.42.1","fixReleasedAt":"2026-06-18T14:18:24.920Z","daysToFix":-1,"match":"ecosystem","source":"registry","status":"found","checkedAt":"2026-10-29T21:34:14.431Z"}]}}