Is this vulnerability remotely exploitable?

Yes, if PraisonAI is exposed via a remote interface (e.g., web API, chat interface, or service endpoint) where remote users can supply input to agent.start(), they can potentially exploit the template rendering behavior remotely.

What level of access does an attacker need to exploit this issue?

The attacker needs the ability to provide or influence the input consumed by agent.start() or other agent entrypoints that flow into tools returned by create_agent_centric_tools(). No direct filesystem or shell access is required; access to the agent-facing interface may be sufficient.

What is the safest general fix pattern for affected code?

Refactor tool implementations so that any user-controlled content is treated as literal data: escape untrusted input before rendering, use parameterized templates instead of concatenation, and limit template engines to non-expressive or sandboxed modes that cannot execute arbitrary code.

Severity:

HIGH RISK

(8.8)

Template Injection / Code Injection (CWE-94) in PraisonAI Agent-Centric Tools

CVE-2026-39891

Published:

Apr 8, 2026

Status:

Undergoing Analysis

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

Recent Vulnerabilities

CWE-77;CWE-78

CRITICAL RISK

CRITICAL

(9.8)

OS Command Injection (CWE-78) in Totolink A7100RU CGI Handler setAccessDeviceCfg

Remote Code Execution on the Router

April 12, 2026

CWE-77;CWE-78

CRITICAL RISK

CRITICAL

(9.8)

OS Command Injection (CWE-78) in Totolink A7100RU CGI setLedCfg Handler

Remote Code Execution on the Router

April 12, 2026

Vulnerability Type

Category:

Template Injection / Code Injection

CWE:

CWE-94

Impact:

Arbitrary Code Execution within the Application Context

Severity:

HIGH RISK

(8.8)

CVSS Version:

3.1

Vulnerability Type

Category:

Template Injection / Code Injection

CWE:

CWE-94

Impact:

Arbitrary Code Execution within the Application Context

Severity:

HIGH RISK

(8.8)

CVSS Version:

3.1

Catch This CVE While Code Is Being Written

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Ask AI for summary of CodeAnt

Template Injection / Code Injection (CWE-94) in PraisonAI Agent-Centric Tools

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

Recent Vulnerabilities

CRITICAL RISK

CRITICAL

(9.8)

OS Command Injection (CWE-78) in Totolink A7100RU CGI Handler setAccessDeviceCfg

CRITICAL RISK

CRITICAL

(9.8)

OS Command Injection (CWE-78) in Totolink A7100RU CGI setLedCfg Handler

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

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