CVE-2026-56839: Mervinpraison Praisonai

High severity, CVSS 7.3. EPSS: 0.4% chance of exploitation in the next 30 days.

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.

Affected products

• Mervinpraison Praisonai: before 4.6.59 (fixed in 4.6.59)

Published 2026-09-14. Last modified 2026-09-16.