triggerdotdev trigger.dev up to 4.4.x packet presign routes api.v1.packets.$.ts resolveStoreProtocolForPacketPresign filename path traversal

Summaryinfo

A vulnerability was found in triggerdotdev trigger.dev up to 4.4.x. It has been rated as critical. Affected by this issue is the function resolveStoreProtocolForPacketPresign of the file apps/webapp/app/routes/api.v1.packets.$.ts of the component packet presign routes. Performing a manipulation of the argument filename results in path traversal. This vulnerability is reported as CVE-2026-73659. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability classified as critical has been found in triggerdotdev trigger.dev up to 4.4.x. This affects the function resolveStoreProtocolForPacketPresign of the file apps/webapp/app/routes/api.v1.packets.$.ts of the component packet presign routes. The manipulation of the argument filename with an unknown input leads to a path traversal vulnerability. CWE is classifying the issue as CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Trigger.dev is the open-source platform for building AI workflows in TypeScript. From 4.4.2 until 4.5.0, the packet presign routes in apps/webapp/app/routes/api.v1.packets.$.ts pass a caller-controlled filename through resolveStoreProtocolForPacketPresign to generatePresignedUrl and generatePresignedRequest in apps/webapp/app/v3/objectStore.server.ts, allowing .. traversal to escape the packets/<projectRef>/<env>/ object-store prefix and enabling a project API key to read or overwrite another organization's offloaded task payloads and outputs on multi-organization self-hosted instances. This issue is fixed in version 4.5.0.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-73659 since 08/13/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1006 according to MITRE ATT&CK.

Upgrading to version 4.5.0 eliminates this vulnerability.

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Productinfo

Vendor

• triggerdotdev

Name

• trigger.dev

Version

• 4.0
• 4.1
• 4.2
• 4.3
• 4.4

Website

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

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