{"id":"CVE-2026-73654","aliases":["GHSA-p28v-f755-9qrg"],"url":"https://o3.security/vulnerability/CVE-2026-73654","summary":"Trigger.dev: Prototype pollution via run metadata operations → process-wide cross-tenant DoS","details":"Trigger.dev is a platform for building and deploying fully managed AI agents and workflows. From 3.3.8 until 4.5.6, the PUT /api/v1/runs/:runId/metadata endpoint passes attacker-controlled operation.key values to new JSONHeroPath(operation.key).set(newMetadata, value) in packages/core/src/v3/runMetadata/operations.ts without rejecting dangerous constructor and prototype path segments. A caller with a normal environment API key can pollute Object.prototype in the shared webapp process, corrupting Prisma queries and Prometheus labels, breaking other tenants' worker authentication, and causing a process-wide denial of service. This issue is fixed in version 4.5.6.","published":"2026-08-13T19:29:05.537Z","modified":"2026-08-14T04:04:48.018858158Z","cvss":{"score":8.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"npm","name":"@trigger.dev/core","fixedVersion":"4.5.6"}],"fix":{"url":"https://github.com/triggerdotdev/trigger.dev/commit/6997aeb05e27d2db47f9eda01fdc8a17c81a1ae0","label":"triggerdotdev/trigger.dev@6997aeb"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/73xxx/CVE-2026-73654.json"},{"type":"FIX","url":"https://github.com/triggerdotdev/trigger.dev/commit/6997aeb05e27d2db47f9eda01fdc8a17c81a1ae0"},{"type":"FIX","url":"https://github.com/triggerdotdev/trigger.dev/pull/4316"},{"type":"WEB","url":"https://github.com/triggerdotdev/trigger.dev/releases/tag/v4.5.6"},{"type":"ADVISORY","url":"https://github.com/triggerdotdev/trigger.dev/security/advisories/GHSA-p28v-f755-9qrg"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-73654"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-14T04:04:48.018858158Z"}}