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Vulnerability record · CVE-2026-55540 · published 25 August 2026

CVE-2026-55540: Path traversal vulnerability

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.

7.1 CVSS 3.1 High EPSS 0.39% · top 69.1% CWE-22 · Path traversal Deferred
7.1CVSS 3.1 base score
0.39%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
4References
9 Sep 2026Last modified by NVD

Description

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.

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:L

References

LinkTags
https://github.com/MervinPraison/PraisonAI/commit/2f9677abb2ea68eab864ee8b6a828fd0141612e1
https://github.com/MervinPraison/PraisonAI/releases/tag/v4.6.58
https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-ch89-h4r2-c8f8
https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-ch89-h4r2-c8f8

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Source: NIST National Vulnerability Database (record CVE-2026-55540), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.