---
id: CVE-2026-73658
title: >-
  Trigger.dev is a platform for building and deploying fully managed AI agents
  and workflows
summary: >-
  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 us…
severity: high
cvss: 8.2
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N'
cwe:
  - CWE-20
  - CWE-22
  - CWE-862
published: '2026-08-13'
updated: '2026-09-08'
sourceUpdated: '2026-09-08T20:56:50.520'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-73658'
references:
  - url: >-
      https://github.com/triggerdotdev/trigger.dev/commit/db4074df54db06b0656becf3f974345c90fa202e
    label: security-advisories@github.com
  - url: 'https://github.com/triggerdotdev/trigger.dev/pull/3830'
    label: security-advisories@github.com
  - url: 'https://github.com/triggerdotdev/trigger.dev/releases/tag/v4.5.0-rc.5'
    label: security-advisories@github.com
  - url: >-
      https://github.com/triggerdotdev/trigger.dev/security/advisories/GHSA-888c-px7m-736v
    label: security-advisories@github.com
  - url: >-
      https://github.com/triggerdotdev/trigger.dev/security/advisories/GHSA-888c-px7m-736v
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
epss: 0.00408
epssPercentile: 0.3485
ingestedAt: '2026-09-08T21:11:12.277Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.