{"id":"CVE-2026-73656","aliases":["GHSA-j6vv-pq9h-f4wj"],"url":"https://o3.security/vulnerability/CVE-2026-73656","summary":"Trigger.dev: Cross-project deployment worker registration can modify another project's deployment state","details":"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.","published":"2026-08-13T19:56:04.286Z","modified":"2026-08-15T04:07:10.175819462Z","cvss":{"score":9.9,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":{"url":"https://github.com/triggerdotdev/trigger.dev/commit/34b1a181c2a1d33a53ebab88f84b05f81fea4254","label":"triggerdotdev/trigger.dev@34b1a18"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/73xxx/CVE-2026-73656.json"},{"type":"FIX","url":"https://github.com/triggerdotdev/trigger.dev/commit/34b1a181c2a1d33a53ebab88f84b05f81fea4254"},{"type":"FIX","url":"https://github.com/triggerdotdev/trigger.dev/pull/4199"},{"type":"WEB","url":"https://github.com/triggerdotdev/trigger.dev/releases/tag/v4.5.2"},{"type":"ADVISORY","url":"https://github.com/triggerdotdev/trigger.dev/security/advisories/GHSA-j6vv-pq9h-f4wj"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-73656"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-15T04:07:10.175819462Z"}}