{"id":"CVE-2026-73656","title":"Trigger.dev is a platform for building and deploying fully managed AI agents and workflows","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/a…","severity":"critical","cvss":9.9,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:H","cwe":["CWE-639","CWE-862"],"published":"2026-08-13","updated":"2026-09-18","sourceUpdated":"2026-09-18T20:09:01.757","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-73656","references":[{"url":"https://github.com/triggerdotdev/trigger.dev/commit/34b1a181c2a1d33a53ebab88f84b05f81fea4254","label":"security-advisories@github.com"},{"url":"https://github.com/triggerdotdev/trigger.dev/pull/4199","label":"security-advisories@github.com"},{"url":"https://github.com/triggerdotdev/trigger.dev/releases/tag/v4.5.2","label":"security-advisories@github.com"},{"url":"https://github.com/triggerdotdev/trigger.dev/security/advisories/GHSA-j6vv-pq9h-f4wj","label":"security-advisories@github.com"}],"tags":["nvd"],"epss":0.00342,"epssPercentile":0.27734,"ingestedAt":"2026-09-18T20:51:25.611Z","slug":"CVE-2026-73656","body":"## Overview\n\nTrigger.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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":55,"depthScoreParts":{"impact":54.5,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}