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TI-2026-51740 Aliases CVE-2026-73656

Trigger.dev: Cross-project deployment worker registration can modify another project's deployment state

Priority MEDIUM 43CWE-639Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
Low · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-639.

Summary

Trigger.dev is a platform for building and deploying fully managed AI agents and workflows. Prior to 4.5.6, POST /api/v1/deployments/:deploymentId/background-workers calls CreateDeploymentBackgroundWorkerServiceV4.call() in apps/webapp/app/v3/services/createDeploymentBackgroundWorkerV4.server.ts, where workerDeployment.findFirst() selects a deployment 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 the victim deployment, and move the victim deployment from BUILDING to DEPLOYING. This issue is fixed in version 4.5.6.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00496 42nd percentileScored 2026-11-07
Fix Fixed trigger.dev (triggerdotdev): 4.5.2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
triggerdotdevtrigger.devbefore 4.5.24.5.2Patch availableCNA
  • trigger.dev Vendortriggerdotdev Affected before 4.5.2 Fixed in 4.5.2 Patch available CNA

Remediation

  • Fix · CNA trigger.dev (triggerdotdev) Fixed in 4.5.2

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-73656

References

Other 4

  • TI-2026-78700 Hardcoded default secrets in Trigger.dev enable authentication bypass CVSS 4.0CRITICAL 9.2
  • TI-2026-78702 Cross-site request forgery in Trigger.dev CLI leads to token theft CVSS 4.0HIGH 8.7
  • TI-2026-78696 Trigger.dev Path Traversal in Packets Presigned URL Endpoints CVSS 4.0HIGH 8.6
  • TI-2026-78682 Improper authorization in Trigger.dev exposes root API key via envvars endpoint CVSS 4.0HIGH 8.6
  • TI-2026-51742 Trigger.dev: Cross-tenant object store read and write via URL path traversal CVSS 3.1HIGH 8.2
  • TI-2026-78699 Trigger.dev realtime streams accept unauthenticated data injection CVSS 4.0MEDIUM 6.9
See all 36 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences