{"cve":"CVE-2026-34955","nvd":{"published":"2026-04-04T00:16:19.370","modified":"2026-07-24T21:10:00.143","status":"Analyzed","description":"PraisonAI is a multi-agent teams system. Prior to version 4.5.97, SubprocessSandbox in all modes (BASIC, STRICT, NETWORK_ISOLATED) calls subprocess.run() with shell=True and relies solely on string-pattern matching to block dangerous commands. The blocklist does not include sh or bash as standalone executables, allowing trivial sandbox escape in STRICT mode via sh -c '<command>'. This issue has been patched in version 4.5.97.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","score":10.0},"cwes":["CWE-78"],"references":["https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-r4f2-3m54-pp7q"],"products":["praison:praisonai"],"source":"nvd","synced_at":"2026-10-19T22:28:59.047572785+00:00"},"epss":{"cve":"CVE-2026-34955","score":0.0039,"percentile":0.33159,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-r4f2-3m54-pp7q","url":"https://osv.dev/vulnerability/GHSA-r4f2-3m54-pp7q","summary":"PraisonAI Has Sandbox Escape via shell=True and Bypassable Blocklist in SubprocessSandbox","modified":"2026-07-13T16:43:47.376530282Z","packages":[{"ecosystem":"PyPI","name":"praisonai","purl":"pkg:pypi/praisonai","ranges":["<4.5.97"],"fixed":["4.5.97"]}]},{"id":"PYSEC-2026-2921","url":"https://osv.dev/vulnerability/PYSEC-2026-2921","summary":"PraisonAI Has Sandbox Escape via shell=True and Bypassable Blocklist in SubprocessSandbox","modified":"2026-07-13T16:33:03.465099648Z","packages":[{"ecosystem":"PyPI","name":"praisonai","purl":"pkg:pypi/praisonai","ranges":["<4.5.97"],"fixed":["4.5.97"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}