CVE-2026-73659 Trigger.dev: Cross-tenant object read/write via path traversal in packet presign API
Attackers can read or overwrite other organizations' data via path traversal in the packet presign API on multi-organization self-hosted instances.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-73659?
CVE-2026-73659 is a high-severity path traversal vulnerability in triggerdotdev trigger.dev, published on 13 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Weakness: CWE-22
Which versions are affected by CVE-2026-73659?
How do I fix CVE-2026-73659?
No fix has been published for CVE-2026-73659 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-73659 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-73659 exists.
Sources
Also known as GHSA-m3mf-37q7-8928.