MervinPraison PraisonAIAgents up to 1.5.127 list_files directory path traversal

Summaryinfo

A vulnerability was found in MervinPraison PraisonAIAgents up to 1.5.127. It has been classified as critical. Affected by this issue is the function list_files. The manipulation of the argument directory leads to path traversal. This vulnerability is listed as CVE-2026-40152. The attack may be initiated remotely. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as critical, has been found in MervinPraison PraisonAIAgents up to 1.5.127. This issue affects the function list_files. The manipulation of the argument directory with an unknown input leads to a path traversal vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality. The summary by CVE is:

PraisonAIAgents is a multi-agent teams system. Prior to 1.5.128, he list_files() tool in FileTools validates the directory parameter against workspace boundaries via _validate_path(), but passes the pattern parameter directly to Path.glob() without any validation. Since Python's Path.glob() supports .. path segments, an attacker can use relative path traversal in the glob pattern to enumerate arbitrary files outside the workspace, obtaining file metadata (existence, name, size, timestamps) for any path on the filesystem. This vulnerability is fixed in 1.5.128.

The advisory is shared at github.com. The identification of this vulnerability is CVE-2026-40152 since 04/09/2026. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1006 for this issue.

Upgrading to version 1.5.128 eliminates this vulnerability.

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Productinfo

Vendor

• MervinPraison

Name

• PraisonAIAgents

Version

• 1.5.127

CPE 2.3info

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CPE 2.2info

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