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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.

PUBLISHED Reserved 2026-03-31 | Published 2026-04-03 | Updated 2026-04-06 | Assigner GitHub_M




HIGH: 8.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Problem types

CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Product status

< 4.5.97
affected

References

github.com/...isonAI/security/advisories/GHSA-r4f2-3m54-pp7q

cve.org (CVE-2026-34955)

nvd.nist.gov (CVE-2026-34955)

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