{"id":"CVE-2026-57120","aliases":["GHSA-pv2j-rghr-v5r9","PYSEC-2026-3533"],"url":"https://o3.security/vulnerability/CVE-2026-57120","summary":"PraisonAI: execute_code sandbox bypass: str.format C-level attribute access reads every blocklisted dunder","details":"PraisonAI is a multi-agent teams system. Prior to praisonaiagents 1.6.59, execute_code sandbox mode permits runtime assembly of blocklisted dunder names and allows str.format or str.format_map to resolve dotted fields through C-level attribute access that bypasses _safe_getattr. This exposes class, qualified-name, base-class, globals, and object-dictionary attributes to prompt-influenced code when approval is automatically granted, producing a high-impact read primitive without establishing a complete in-process execution chain. This issue is fixed in praisonaiagents 1.6.59.","published":"2026-09-14T14:48:14.932Z","modified":"2026-09-16T03:47:10.872139787Z","cvss":{"score":6.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"PyPI","name":"praisonaiagents","fixedVersion":"1.6.59"}],"fix":{"url":"https://github.com/MervinPraison/PraisonAI/commit/2adfe7e8323f6deec66925cf15a885b6238895e9","label":"MervinPraison/PraisonAI@2adfe7e"},"references":[{"type":"WEB","url":"https://github.com/MervinPraison/PraisonAI/releases/tag/v4.6.59"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/57xxx/CVE-2026-57120.json"},{"type":"ADVISORY","url":"https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-pv2j-rghr-v5r9"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-57120"},{"type":"FIX","url":"https://github.com/MervinPraison/PraisonAI/commit/2adfe7e8323f6deec66925cf15a885b6238895e9"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-09-16T03:47:10.872139787Z"}}