CVE-2026-40088

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') in praisonai

PraisonAI is a multi-agent teams system. Prior to 4.5.121, the execute_command function and workflow shell execution are exposed to user-controlled input via agent workflows, YAML definitions, and LLM-generated tool calls, allowing attackers to inject arbitrary shell commands through shell metacharacters. This vulnerability is fixed in 4.5.121.

Affected

MervinPraison · PraisonAI

CVSS v3.1 NVD

9.6 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

EPSS

0.60% chance of exploitation in the next 30 days, 48th percentile

Published

2026-04-09

Proof-of-concept exploits (1)

• advisories/GHSA-2763-cj5r-c79m

Security advisories

• MervinPraison/PraisonAI/security/advisories/GHSA-2763-cj5r-c79m
• MervinPraison/PraisonAI/releases/tag/v4.5.121

References

• CVE Record
• NVD entry