CVE-2026-73656 Trigger.dev: Cross-project deployment worker registration can modify another project's deployment state
Attackers with valid API keys can modify other projects' deployment states by linking unauthorized background workers due to missing environment checks.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-73656?
CVE-2026-73656 is a critical missing authorization vulnerability in triggerdotdev trigger.dev, published on 13 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Which versions are affected by CVE-2026-73656?
How do I fix CVE-2026-73656?
No fix has been published for CVE-2026-73656 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-73656 being exploited?
There is no known exploitation of CVE-2026-73656 in the wild and no public exploit code.
Sources
Also known as GHSA-j6vv-pq9h-f4wj.