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TI-2026-34962 Aliases CVE-2026-47392GHSA-4mr5-g6f9-cfrh

PraisonAI vulnerable to sandbox escape via `print.__self__` builtins module leak in `execute_code` (subprocess mode)

Priority HIGH 76CWE-184Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-693.

Summary

PraisonAI is a multi-agent teams system. Prior to version 4.6.40 of PraisonAI, corresponding to version 1.6.40 of praisonaiagents, `execute_code()` in `praisonaiagents/tools/python_tools.py` (v1.6.37, subprocess sandbox mode) can be fully bypassed using `print.__self__` to retrieve the real Python `builtins` module, from which `__import__` can be extracted via `vars()` and runtime string construction. This achieves arbitrary OS command execution on the host, completely defeating the sandbox. This is a novel bypass that survives all patches for CVE-2026-39888 (frame traversal), CVE-2026-34938 (str subclass), and CVE-2026-40158 (`type.__getattribute__` trampoline). PraisonAI version 4.6.40 and praisonaiagents version 1.6.40 contain an updated fix.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00884 59th percentileScored 2026-11-07
Fix Fixed PraisonAI (MervinPraison): 4.6.40praisonaiagents (PyPI): 1.6.40+1 more product

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
MervinPraisonPraisonAIbefore 4.6.404.6.40Patch availableCNA
MervinPraison< 1.6.40praisonaiagents—No fix listedCNA
—praisonaiagents (PyPI)before 1.6.401.6.40Patch availableGHSA-4mr5-g6f9-cfrh
—PraisonAI (PyPI)before 4.6.404.6.40Patch availableGHSA-4mr5-g6f9-cfrh
  • PraisonAI VendorMervinPraison Affected before 4.6.40 Fixed in 4.6.40 Patch available CNA
  • < 1.6.40 VendorMervinPraison Affected praisonaiagents Fixed in — No fix listed CNA
  • praisonaiagents (PyPI) Vendor— Affected before 1.6.40 Fixed in 1.6.40 Patch available GHSA-4mr5-g6f9-cfrh
  • PraisonAI (PyPI) Vendor— Affected before 4.6.40 Fixed in 4.6.40 Patch available GHSA-4mr5-g6f9-cfrh

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:praison:praisonai:*:*:*:*:*:*:*:*——MervinPraison
  • cpe:2.3:a:praison:praisonai:*:*:*:*:*:*:*:* Versions — — ·MervinPraison

Remediation

  • Fix · CNA PraisonAI (MervinPraison) Fixed in 4.6.40
  • Fix · GHSA-4mr5-g6f9-cfrh praisonaiagents (PyPI) Fixed in 1.6.40 Advisory →
  • Fix · GHSA-4mr5-g6f9-cfrh PraisonAI (PyPI) Fixed in 4.6.40 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-47392
  2. 2026-10-03 Alias added: GHSA-4mr5-g6f9-cfrh

References

Other 4

  • TI-2026-79619 Missing authentication in PraisonAI AgentOS exposes agent chat CVSS 3.1CRITICAL 9.8
  • TI-2026-71236 Missing access control in PraisonAI AgentTeam exposes agent endpoints CVSS 3.1CRITICAL 9.8
  • TI-2026-44052 PraisonAI before 1.6.78 Remote Code Execution via CodeAgent CVSS 4.0CRITICAL 10.0
  • TI-2026-41123 praisonai-platform 0.1.4 still boots on the hardcoded JWT secret dev-secret-change-me (default-open production guard) CVSS 3.1CRITICAL 9.8
  • TI-2026-41122 praisonai-platform: default JWT signing secret 'dev-secret-change-me' enables token forgery CVSS 3.1CRITICAL 9.8
  • TI-2026-41118 PraisonAI MCPServer exposes unauthenticated HTTP tools/call CVSS 3.1CRITICAL 9.8
See all 177 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences