Auth bypass in Mervinpraison Praisonai
CVE-2026-56839
PraisonAI is a multi-agent teams system. Prior to 4.6.59, the CODE_TOOLS wrappers keep _workspace_root as None and pass workspace=None to read_file, search_replace, and apply_diff helpers that enforce path containment only for a truthy workspace. An application that exposes code_read_file, code_search_replace, or code_apply_diff before set_workspace can therefore let prompt-influenced calls read and modify files outside the intended project directory, while explicitly configured workspaces remain effective. This vulnerability is fixed in 4.6.59.
Vulnerability class: Path Traversal (Directory Traversal)
CVSS v3 metric
CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N.
Affected products
- Mervinpraison Praisonai — versions < 4.6.59
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
Frequently asked questions
- What is CVE-2026-56839?
- CVE-2026-56839 is a high-severity vulnerability in Mervinpraison Praisonai, classified under Path Traversal. CVSS score: 7.3/10. Published 2026-09-14.
- How severe is CVE-2026-56839?
- High severity. CVSS v3 base score is 7.3 out of 10.