Command Injection Vulnerability in MCP-Server-Taskwarrior by Awwaiid
CVE-2026-5833

4.8MEDIUM

Key Information:

Vendor

Awwaiid

Status
Mcp-server-taskwarrior
Vendor
CVE Published:
9 April 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-5833?

A security vulnerability in Awwaiid's MCP-Server-Taskwarrior up to version 1.0.1 allows local attackers to execute arbitrary commands via manipulated arguments in the setRequestHandler function within index.ts. The issue has been publicly disclosed, and a patch (1ee3d282debfa0a99afeb41d22c4b2fd5a3148f2) is available to address the flaw. Users are strongly encouraged to apply the patch to safeguard their systems.

Affected Version(s)

mcp-server-taskwarrior 1.0.0

mcp-server-taskwarrior 1.0.1

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-5833 - Proof of Concept

References

https://vuldb.com/vuln/356289
vdb-entrytechnical-description
https://vuldb.com/vuln/356289/cti
signaturepermissions-required
https://vuldb.com/submit/789810
third-party-advisory

CVSS V4

Score:
4.8
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Yinci Chen (VulDB User)
VulDB CNA Team
.