dbcve.org
Command InjectionWeakness · CWE-77

CVE-2026-5831

MEDIUM · 6.3 CVSS v3.1 Published 2026-04-09
Patch available
A vendor patch is available. No clean upgrade release — apply the published patch.
See remediation →
69/100
Remediation priority · Elevated
Remotely reachable Zero-click Patch available

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
A security flaw has been discovered in Agions taskflow-ai up to 2.1.8. This impacts an unknown function of the file src/mcp/server/handlers.ts of the component terminal_execute. Performing a manipulation results in os command injection. The attack is possible to be carried out remotely. Upgrading to version 2.1.9 will fix this issue. The patch is named c1550b445b9f24f38c4414e9a545f5f79f23a0fe. Upgrading the affected component is recommended. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis
How this class of weakness works · CWE-77

User input reaches a command interpreter without being fully separated from the command itself, so an attacker can append instructions of their own. Because those run with the application's privileges, it frequently means control of the host. The lasting fix is to avoid constructing commands from input — call APIs directly and pass arguments as data, never as concatenated strings.

General guidance for the command injection class — the official description and references above are authoritative for this specific CVE. Want a bespoke review and a reviewed fix? Ask our team →

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Patch available Apply the vendor patch
Vendor patch github.com →
Recommended fix High confidence

2.1.9

  1. 1. Ensure you have a backup of your current taskflow-ai installation and any configuration files.
  2. 2. Identify your current installation method (npm, pip, docker, or direct clone).
  3. 3. If using npm/pip, run the package manager update command to fetch version 2.1.9: npm install [email protected] or pip install taskflow-ai==2.1.9
  4. 4. If using Docker, update your image tag to use version 2.1.9 or pull the latest image which should contain the fix.
  5. 5. If using a direct clone, navigate to your repository directory and run: git fetch --all && git checkout <commit> or git pull to get the latest version including the fix.
  6. 6. After upgrading, verify the server starts without errors.
  7. 7. Test the terminal_execute functionality to ensure it works correctly with the patched code.
  8. 8. Review the vendor commit (c1550b445b9f24f38c4414e9a545f5f79f23a0fe) if you want to understand what specific code changes were made to address the command injection vulnerability.

Generated from the published advisory — verify against the referenced sources before acting.

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2026-5831 in production — separate from our analysis above.

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