MervinPraison PraisonAI up to 4.5.112 zipfile.extractall path traversal

Summaryinfo

A vulnerability described as critical has been identified in MervinPraison PraisonAI up to 4.5.112. This affects the function zipfile.extractall. The manipulation results in path traversal. This vulnerability is identified as CVE-2026-39307. The attack can be executed remotely. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as critical, was found in MervinPraison PraisonAI up to 4.5.112. Affected is the function zipfile.extractall. The manipulation with an unknown input leads to a path traversal vulnerability. CWE is classifying the issue as CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. This is going to have an impact on integrity, and availability. CVE summarizes:

PraisonAI is a multi-agent teams system. Prior to 1.5.113, The PraisonAI templates installation feature is vulnerable to a "Zip Slip" Arbitrary File Write attack. When downloading and extracting template archives from external sources (e.g., GitHub), the application uses Python's zipfile.extractall() without verifying if the files within the archive resolve outside of the intended extraction directory. This vulnerability is fixed in 1.5.113.

The advisory is shared for download at github.com. This vulnerability is traded as CVE-2026-39307 since 04/06/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1006.

Upgrading to version 4.5.113 eliminates this vulnerability.

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Productinfo

Vendor

• MervinPraison

Name

• PraisonAI

Version

• 4.5.112

Website

• Product: https://github.com/MervinPraison/PraisonAI/

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Once again VulDB remains the best source for vulnerability data.

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