MervinPraison PraisonAI up to 4.6.57 is_path_within_directory path traversal

Summaryinfo

A vulnerability categorized as critical has been discovered in MervinPraison PraisonAI up to 4.6.57. This impacts the function is_path_within_directory. Executing a manipulation can lead to path traversal. The identification of this vulnerability is CVE-2026-55540. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability classified as critical was found in MervinPraison PraisonAI up to 4.6.57. This vulnerability affects the function is_path_within_directory. The manipulation with an unknown input leads to a path traversal vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

PraisonAI is a multi-agent teams system. Prior to praisonai 4.6.51, is_path_within_directory() uses os.path.abspath() rather than os.path.realpath() for the workspace boundary. A symlink inside workspace can point outside and still pass the check, allowing read_file and other code tools to access files outside the configured workspace. This issue is fixed in version 4.6.58.

The advisory is available at github.com. This vulnerability was named CVE-2026-55540 since 06/17/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1006 by the MITRE ATT&CK project.

Upgrading to version 4.6.58 eliminates this vulnerability.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

• MervinPraison

Name

• PraisonAI

Version

• 4.6.0
• 4.6.1
• 4.6.2
• 4.6.3
• 4.6.4
• 4.6.5
• 4.6.6
• 4.6.7
• 4.6.8
• 4.6.9
• 4.6.10
• 4.6.11
• 4.6.12
• 4.6.13
• 4.6.14
• 4.6.15
• 4.6.16
• 4.6.17
• 4.6.18
• 4.6.19
• 4.6.20
• 4.6.21
• 4.6.22
• 4.6.23
• 4.6.24
• 4.6.25
• 4.6.26
• 4.6.27
• 4.6.28
• 4.6.29
• 4.6.30
• 4.6.31
• 4.6.32
• 4.6.33
• 4.6.34
• 4.6.35
• 4.6.36
• 4.6.37
• 4.6.38
• 4.6.39
• 4.6.40
• 4.6.41
• 4.6.42
• 4.6.43
• 4.6.44
• 4.6.45
• 4.6.46
• 4.6.47
• 4.6.48
• 4.6.49
• 4.6.50
• 4.6.51
• 4.6.52
• 4.6.53
• 4.6.54
• 4.6.55
• 4.6.56
• 4.6.57

Website

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

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Discussion