CriticalVulnerability

CVE-2026-73656: Trigger.dev deployment lookup without environment check via workers API

Source: NVD(opens in a new tab)
Identifier: CVE-2026-73656
Published: August 13, 2026
Record updated: October 9, 2026

Known exploitation: Not listed in the CISA Known Exploited Vulnerabilities catalog at the last check.
EPSS: 0.5%

Summary

Trigger.dev versions prior to 4.5.6 fail to scope a deployment lookup to the caller's environment. In POST /api/v1/deployments/:deploymentId/background-workers, workerDeployment.findFirst() selects by friendlyId without an environmentId predicate. A caller with a valid API key for one project can submit another project's deployment identifier, link an attacker-owned background worker to it, and move that deployment from BUILDING to DEPLOYING.

Mitigation

Fixed in 4.5.6.

Details

Scores and exploitation

CVSS score: 9.9(critical)
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:H
Attack vector: network
Attack complexity: low
Privileges required: low
User interaction: none
EPSS: 0.5%Estimated probability that this CVE is exploited in the next 30 days, from the FIRST Exploit Prediction Scoring System. Read on November 12, 2026.
Disclosure date: August 13, 2026

Weaknesses and techniques

Weakness (CWE): CWE-639
CWE-862
Attack pattern (CAPEC): CAPEC-122

Classification

Attack type: Other
Attack sophistication: Moderate
AI component targeted: Agent
Impact: Integrity,
Confidentiality
Labels: security

How this record was produced

Summaries, mitigations and labels on this page are generated automatically from the source. The linked source is authoritative. The source gives this advisory a description and no title, so the title above is a headline generated from the source text.

Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-73656

First tracked: August 13, 2026 at 08:08 PM ET, from NVD/CVE Database

Classifier: claude-haiku-5-5, prompt v4

Classifier confidence: 80% (self-assessed)

Topics

AI agents

Summary

Mitigation

Topics

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