triggerdotdev trigger.dev up to 4.5.5 Run Metadata operations.ts JSONHeroPath.set operation.key denial of service

Summaryinfo

A vulnerability was found in triggerdotdev trigger.dev up to 4.5.5 and classified as problematic. Affected is the function JSONHeroPath.set of the file packages/core/src/v3/runMetadata/operations.ts of the component Run Metadata. Executing a manipulation of the argument operation.key can lead to denial of service. This vulnerability is handled as CVE-2026-73654. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in triggerdotdev trigger.dev up to 4.5.5. It has been declared as problematic. This vulnerability affects the function JSONHeroPath.set of the file packages/core/src/v3/runMetadata/operations.ts of the component Run Metadata. The manipulation of the argument operation.key with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect integrity, and availability. CVE summarizes:

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.

The advisory is available at github.com. This vulnerability was named CVE-2026-73654 since 08/13/2026. The exploitation appears to be easy. The attack can be initiated remotely. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1499 by the MITRE ATT&CK project.

Upgrading to version 4.5.6 eliminates this vulnerability.

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Productinfo

Vendor

• triggerdotdev

Name

• trigger.dev

Version

• 4.5.0
• 4.5.1
• 4.5.2
• 4.5.3
• 4.5.4
• 4.5.5

Website

• Product: https://github.com/triggerdotdev/trigger.dev/

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