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CVE-2026-40287

PraisonAI has RCE via Automatic tools.py Import

HIGH
8.4
CVSS Score
Published: April 14, 2026 at 02:55 AM UTC
Updated: June 17, 2026 at 10:44 AM UTC
3 products affected across 2 vendorsPraisonAIPraisonaiagentsPraisonAIAgents

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Severity
HIGH8.4
Exploit prediction
EPSS 0.2%
SSVC
PoC

Description

PraisonAI is a multi-agent teams system. Versions 4.5.138 and below are vulnerable to arbitrary code execution through automatic, unsanitized import of a tools.py file from the current working directory. Components including call.py (import_tools_from_file()), tool_resolver.py (_load_local_tools()), and CLI tool-loading paths blindly import ./tools.py at startup without any validation, sandboxing, or user confirmation. An attacker who can place a malicious tools.py in the directory where PraisonAI is launched (such as through a shared project, cloned repository, or writable workspace) achieves immediate arbitrary Python code execution in the host environment. This compromises the full PraisonAI process, the host system, and any connected data or credentials. This issue has been fixed in version 4.5.139.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

PraisonAI· Mervinpraison
95%
v < 4.5.139
Affected range stops below 4.5.139, so it looks safe — our inference, not a vendor statement
Praisonaiagents· Praisonpypi
95%
v < 1.5.140
PraisonAIAgents· Mervinpraison
60%
v < 1.5.140
Affected range stops below 1.5.140, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

x_refsource_CONFIRMExploitVendor Advisory
Source: cverecord
https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-g985-wjh9-qxxc

SSVC — Action Prioritization

SSVCPoCNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.4HIGHGitHub_M
Attack Vector
LOCAL
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-94CWE-426

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