Vulnerability · Published Aug 13, 2026 · Assigned by GitHub_M

CVE-2026-73658Trigger.dev: Cross-tenant object store read and write via URL path traversal

High 8.2

In plain English

A high-severity improper input validation in trigger.dev from triggerdotdev. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 36% of all known vulnerabilities).

Severity (CVSS 3.1)8.2High

Exploit odds (30 days)0.4%top 64.3% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

Trigger.dev is a platform for building and deploying fully managed AI agents and workflows. From 4.4.2 until 4.5.0-rc.5, Aws4FetchClient.buildUrl() and Aws4FetchClient.presign() in apps/webapp/app/v3/objectStoreClient.server.ts assign user-controlled packet keys to URL.pathname, while apps/webapp/app/routes/api.v1.packets.$.ts accepts params["*"] without rejecting dot segments and uses findResource: async () => 1 without per-resource ownership validation. WHATWG path normalization collapses .. segments before signing, allowing a caller with a valid environment API key to obtain presigned URLs for another tenant's object-store keys and read or overwrite task payloads. This issue is fixed in version 4.5.0-rc.5.

Affected products (as reported)

Vendor	Product	Versions
triggerdotdev	trigger.dev	>= 4.4.2, < 4.5.0-rc.5

Weakness: CWE-20, CWE-22, CWE-862 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N

References

https://github.com/triggerdotdev/trigger.dev/security/advisories/GHSA-888c-px7m-736v x_refsource_CONFIRM
https://github.com/triggerdotdev/trigger.dev/pull/3830 x_refsource_MISC
https://github.com/triggerdotdev/trigger.dev/commit/db4074df54db06b0656becf3f974345c90fa202e x_refsource_MISC
https://github.com/triggerdotdev/trigger.dev/releases/tag/v4.5.0-rc.5 x_refsource_MISC