CVE-2026-73654
Trigger.dev: Prototype pollution via run metadata operations → process-wide cross-tenant DoS
- Published
- Updated
- Reserved
- Assigned by
- GitHub_M
Description
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_MCNA (assigner) | 3.1 | High8.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:H |
| NVDNVD · Deferred | 3.1 | High8.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:H |
- EPSS (exploitation in 30 days)
- 0.62% · top 50% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: poc · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.5.
Weakness
Affected products
- affected >= 3.3.8, < 4.5.6
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- npm@trigger.dev/coreGHSA-p28v-f755-9qrg (opens in a new tab)
References (4)
- https://github.com/triggerdotdev/trigger.dev/security/advisories/GHSA-p28v-f755-9qrg (opens in a new tab)x_refsource_CONFIRMexploit
- https://github.com/triggerdotdev/trigger.dev/pull/4316 (opens in a new tab)x_refsource_MISC
- https://github.com/triggerdotdev/trigger.dev/commit/6997aeb05e27d2db47f9eda01fdc8a17c81a1ae0 (opens in a new tab)x_refsource_MISC
- https://github.com/triggerdotdev/trigger.dev/releases/tag/v4.5.6 (opens in a new tab)x_refsource_MISC
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-p28v-f755-9qrg (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2026-73654)Record last updated .