CVE-2026-40287Public exploit

Code execution via automatic working-directory module import

Published Apr 14, 2026 · Updated Apr 14, 2026

Code injection in PraisonAI before 4.5.139 and praisonaiagents before 1.5.140 allows local users to execute Python code via tools.py. The call.py import_tools_from_file(), tool_resolver.py _load_local_tools(), and CLI loaders import the working-directory module without validation or confirmation. Placing tools.py in a shared, cloned, or writable launch directory is required; its module-level code then runs with the PraisonAI process privileges.

CVSS severity8.4
High
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code injection in PraisonAI before 4.5.139 and praisonaiagents before 1.5.140 allows local users to execute Python code via tools.py. The call.py import_tools_from_file(), tool_resolver.py _load_local_tools(), and CLI loaders import the working-directory module without validation or confirmation. Placing tools.py in a shared, cloned, or writable launch directory is required; its module-level code then runs with the PraisonAI process privileges.

The record

CVE
CVE-2026-40287
Published
Apr 14, 2026
Updated
Apr 14, 2026
Vendor
PraisonAI
Product
PraisonAI
Classifications
CWE-94, CWE-426, T1059.006
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 14, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 14, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 4.5.139

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

PraisonAI · PraisonAIversion=< 4.5.139
PraisonAI · praisonaiagentsversion=< 1.5.140

Published CVSS scores

8.4GitHubCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
CWE-426Untrusted Search Path
T1059.006Python

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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