What’s Vulnerable › Vulnerabilities

CVE-2026-73656: Trigger.dev: Cross-project deployment worker registration can modify another project's deployment state

• Severity: critical (CVSS 9.9 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-13 · updated 2026-09-18
• Weakness: CWE-639

Description

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.

Affected products

• triggerdotdev trigger.dev: before 4.5.2

References

• https://github.com/triggerdotdev/trigger.dev/commit/34b1a181c2a1d33a53ebab88f84b05f81fea4254
• https://github.com/triggerdotdev/trigger.dev/pull/4199
• https://github.com/triggerdotdev/trigger.dev/releases/tag/v4.5.2
• https://github.com/triggerdotdev/trigger.dev/security/advisories/GHSA-j6vv-pq9h-f4wj

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