CVE-2026-40154Public exploitNetwork attack vector

Code execution via auto-loaded remote template tools

Published Apr 9, 2026 · Updated Apr 9, 2026

Code execution in PraisonAI before 4.5.128 allows remote attackers to run Python code through a remotely sourced template. The template registry caches downloaded Python files without origin or integrity validation, and tool_resolver.py invokes exec_module() on cached tools.py without confirmation. Exploitation requires an operator to install and run an attacker-controlled template; the code then executes with that operator's filesystem, environment, and network access.

CVSS severity9.3
Critical
EPSS probability0.30%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code execution in PraisonAI before 4.5.128 allows remote attackers to run Python code through a remotely sourced template. The template registry caches downloaded Python files without origin or integrity validation, and tool_resolver.py invokes exec_module() on cached tools.py without confirmation. Exploitation requires an operator to install and run an attacker-controlled template; the code then executes with that operator's filesystem, environment, and network access.

The record

CVE
CVE-2026-40154
Published
Apr 9, 2026
Updated
Apr 9, 2026
Vendor
PraisonAI
Product
PraisonAI
Classifications
CWE-829, T1204.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 9, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 9, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=< 4.5.128

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

PraisonAI · PraisonAIversion=< 4.5.128

Published CVSS scores

9.6NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
9.3GitHubCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-829Inclusion of Functionality from Untrusted Control Sphere
T1204.002User Execution: Malicious File

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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