CVE-2026-73656

criticalCVSS 9.9covered by 1 sourcefirst seen 2026-08-13

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.

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Exploitation outlook

Low exploitation risk0.34% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 27% of all EPSS-scored CVEs.

Advisory coverage (1)

criticalCVE-2026-73656: Trigger.dev is a platform for building and deploying fully managed AI agents and workflows. Pr…nvd · 2026-08-13

External references

NVD record for CVE-2026-73656

CVE.org record

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