CVE-2026-34955
PraisonAI: Sandbox Escape via shell=True and Bypassable Blocklist in SubprocessSandbox
CVSS Score
8.8
EPSS Score
0.0%
EPSS Percentile
5th
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.
| CWE | CWE-78 |
| Vendor | mervinpraison |
| Product | praisonai |
| Published | Apr 3, 2026 |
| Last Updated | Apr 6, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
MervinPraison / PraisonAI
< 4.5.97