CVE-2026-114090: Trigger.dev cli-v3 missing authentication in MCP server

CVE-2026-114090 · Severity: high · CVSS 7.1 · Published 2026-10-21

Trigger.dev's command-line tool for local MCP server operations fails to authenticate incoming requests, exposing developer credentials and project data. An attacker on the same network or through a malicious webpage can invoke task operations, cancel runs, and access logs using the developer's stored API token, leading to unauthorized task execution and data exposure.

Vendors: Trigger.dev.

Quick answers

Is CVE-2026-114090 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-114090 being exploited in the wild.
How severe is CVE-2026-114090?
High severity, with a CVSS score of 7.1, published 21 October 2026.
Which products and versions are affected?
Trigger.dev Cli-V3 3.0.0 before 4.5.4.
Is there a fix for CVE-2026-114090?
Yes: fixed in 4.5.4. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-114090 attacked?
It is attacked over the network or from the adjacent network, in a software library.
Am I affected by CVE-2026-114090?
Check whether you run Trigger.dev Cli-V3 at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • Fixed in: 4.5.4

Technical details

The MCP server launched by `trigger dev --mcp` binds to all network interfaces (0.0.0.0) without hostname restriction and exposes /sse and /messages endpoints with no authentication middleware. An attacker on the LAN or a malicious webpage visited by the developer can send JSON-RPC 2.0 MCP tool requests to invoke trigger-task, cancel-run, list-runs, and get-run-logs, all of which execute against the developer's stored Trigger.dev access token bound at server construction.

Affected products

  • Trigger.dev cli-v3 3.0.0 before 4.5.4

Timeline

  • 2026-07-21: disclosed
  • 2026-10-20: advisory

References

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