CVE-2026-73656Public exploitNetwork attack vector

Cross-project deployment tampering via unscoped worker lookup

Published Aug 13, 2026 · Updated Aug 13, 2026

Authorization bypass in Trigger.dev before 4.5.6 allows remote authenticated users to alter another project's deployment state. CreateDeploymentBackgroundWorkerServiceV4 selects workerDeployment records by attacker-supplied friendlyId without constraining environmentId, then links the caller's worker and updates the selected deployment. A valid project API key and the victim deployment identifier are required; successful requests move the victim from BUILDING to DEPLOYING and attach attacker-controlled worker metadata.

CVSS severity9.9
Critical
EPSS probability0.34%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authorization bypass in Trigger.dev before 4.5.6 allows remote authenticated users to alter another project's deployment state. CreateDeploymentBackgroundWorkerServiceV4 selects workerDeployment records by attacker-supplied friendlyId without constraining environmentId, then links the caller's worker and updates the selected deployment. A valid project API key and the victim deployment identifier are required; successful requests move the victim from BUILDING to DEPLOYING and attach attacker-controlled worker metadata.

The record

CVE
CVE-2026-73656
Published
Aug 13, 2026
Updated
Aug 13, 2026
Vendor
Trigger.dev
Product
Trigger.dev
Classifications
CWE-862, CWE-639, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 13, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 13, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 4.5.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Trigger.dev · Trigger.devversion=< 4.5.2

Published CVSS scores

9.9GitHubCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-862Missing Authorization
CWE-639Authorization Bypass Through User-Controlled Key
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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