CVE-2026-40088
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') in praisonai
Description
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.
INFO
Published Date :
April 9, 2026, 8:16 p.m.
Last Modified :
April 16, 2026, 8:40 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-40088
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | CRITICAL | [email protected] | ||||
| CVSS 3.1 | CRITICAL | [email protected] |
Solution
- Update PraisonAI to version 4.5.121.
- Validate system configuration for workflows.
- Review agent inputs for sanitization.
Public PoC/Exploit Available at Github
CVE-2026-40088 has a 2 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-40088.
| URL | Resource |
|---|---|
| https://github.com/MervinPraison/PraisonAI/releases/tag/v4.5.121 | Release Notes |
| https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-2763-cj5r-c79m | Exploit Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-40088 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-40088
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
None
Cathedral-Grade Security for AI Agents. Attack vectors updated daily. Local-first, zero API cost. MIT licensed.
Python
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-40088 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-40088 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Apr. 16, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H Added CPE Configuration OR *cpe:2.3:a:praison:praisonai:*:*:*:*:*:*:*:* versions up to (excluding) 4.5.121 Added Reference Type GitHub, Inc.: https://github.com/MervinPraison/PraisonAI/releases/tag/v4.5.121 Types: Release Notes Added Reference Type GitHub, Inc.: https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-2763-cj5r-c79m Types: Exploit, Vendor Advisory -
New CVE Received by [email protected]
Apr. 09, 2026
Action Type Old Value New Value Added Description 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. Added CVSS V3.1 AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H Added CWE CWE-78 Added Reference https://github.com/MervinPraison/PraisonAI/releases/tag/v4.5.121 Added Reference https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-2763-cj5r-c79m