CVE-2026-5833: Mcp server taskwarrior Awwaiid Mcp-server-taskwarrior Vulnerable To Command Vulnerability

LOW
Advisory Identifier: GHSA-95hg-3c55-xf9x
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CVSS 5.3
CWE-74
Published
Advisory Summary

CVE-2026-5833 is a LOW (CVSS 5.3) awwaiid mcp-server-taskwarrior vulnerable to command vulnerability (CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')) affecting Mcp server taskwarrior libraries in the npm ecosystem. The issue involves awwaiid mcp-server-taskwarrior vulnerable to command injection. Remediation is available in the latest vendor maintenance releases.

CVE-2026-5833 at a Glance

CVE Identifier CVE-2026-5833
GHSA Identifier GHSA-95hg-3c55-xf9x
Severity LOW
CVSS v3.1 Base Score 5.3
CWE Classification CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
Affected Product Mcp server taskwarrior
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 5.3

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L).

Attack Vector Local (AV:L)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality Low (C:L)
Integrity Low (I:L)
Availability Low (A:L)

How to Fix CVE-2026-5833

To remediate this vulnerability, upgrade all affected Mcp server taskwarrior dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

mcp-server-taskwarrior fixed: Latest secure release 
npm install mcp-server-taskwarrior@Latest secure release
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

npm ls mcp-server-taskwarrior

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2026-5833, inspect your project dependencies using npm:

npm ls mcp-server-taskwarrior

Analyze the terminal output to locate any version of Mcp server taskwarrior in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: The npm ls mcp-server-taskwarrior command inspects dependencies declared in your package.json and lockfile; it does not perform automated runtime dynamic scanning.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection'), where the product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component. In Mcp server taskwarrior, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

A security vulnerability has been detected in awwaiid mcp-server-taskwarrior up to 1.0.1. This impacts the function server.setRequestHandler of the file index.ts. Such manipulation of the argument Identifier leads to command injection. The attack must be carried out locally. The exploit has been disclosed publicly and may be used. The name of the patch is 1ee3d282debfa0a99afeb41d22c4b2fd5a3148f2. Applying a patch is advised to resolve this issue. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.

CVE-2026-5833 Affected Mcp server taskwarrior Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
mcp-server-taskwarrior
npm/mcp-server-taskwarrior
npm
≤ 1.0.1

References

NVD — CVE-2026-5833 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-5833
Mcp server taskwarrior Source Repository REPOSITORY
https://github.com/awwaiid/mcp-server-taskwarrior/issues/8
Mcp server taskwarrior Source Repository REPOSITORY
https://github.com/awwaiid/mcp-server-taskwarrior/issues/8#issuecomment-4139402095
Security Fix Commit FIX COMMIT
https://github.com/awwaiid/mcp-server-taskwarrior/commit/1ee3d282debfa0a99afeb41d22c4b2fd5a3148f2
Mcp server taskwarrior Source Repository REPOSITORY
https://github.com/awwaiid/mcp-server-taskwarrior
Mcp server taskwarrior Source Repository REPOSITORY
https://github.com/user-attachments/files/25923228/mcp-server-taskwarrior_bug.pdf
vuldb.com/submit/789810 WEB
https://vuldb.com/submit/789810
vuldb.com/vuln/356289 WEB
https://vuldb.com/vuln/356289
vuldb.com/vuln/356289/cti WEB
https://vuldb.com/vuln/356289/cti

Frequently Asked Questions

What is CVE-2026-5833?
CVE-2026-5833 is a security vulnerability in Mcp server taskwarrior involving awwaiid mcp-server-taskwarrior vulnerable to command injection under CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection').
Which Mcp server taskwarrior versions are affected?
Affected versions include releases prior to current release patches across affected packages: mcp-server-taskwarrior.
What version fixes CVE-2026-5833?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is mcp-server-taskwarrior affected?
Yes, mcp-server-taskwarrior is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of CVE-2026-5833?
CVE-2026-5833 has a CVSS v3.1 base score of 5.3 (LOW) with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.
What CWE is associated with CVE-2026-5833?
CVE-2026-5833 is classified under CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') (The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.).
How can I check npm dependencies for CVE-2026-5833?
Run the dependency tree command: 'npm ls mcp-server-taskwarrior'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-95hg-3c55-xf9x",
  "modified" : "2026-04-10T19:20:15Z",
  "published" : "2026-04-09T06:30:27Z",
  "aliases" : [ "CVE-2026-5833" ],
  "summary" : "awwaiid mcp-server-taskwarrior vulnerable to command injection",
  "details" : "A security vulnerability has been detected in awwaiid mcp-server-taskwarrior up to 1.0.1. This impacts the function server.setRequestHandler of the file index.ts. Such manipulation of the argument Identifier leads to command injection. The attack must be carried out locally. The exploit has been disclosed publicly and may be used. The name of the patch is 1ee3d282debfa0a99afeb41d22c4b2fd5a3148f2. Applying a patch is advised to resolve this issue. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "mcp-server-taskwarrior"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "1.0.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-5833"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/awwaiid/mcp-server-taskwarrior/issues/8"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/awwaiid/mcp-server-taskwarrior/issues/8#issuecomment-4139402095"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/awwaiid/mcp-server-taskwarrior/commit/1ee3d282debfa0a99afeb41d22c4b2fd5a3148f2"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/awwaiid/mcp-server-taskwarrior"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/user-attachments/files/25923228/mcp-server-taskwarrior_bug.pdf"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/submit/789810"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/vuln/356289"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/vuln/356289/cti"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-74" ],
    "severity" : "LOW",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-04-10T19:20:15Z",
    "nvd_published_at" : "2026-04-09T04:17:16Z"
  }
}