CVE-2026-73658 — Trigger.dev is a platform for building and deploying fully managed AI agents and…¶
Key facts
CVE-2026-73658 is a High (8.2) vulnerability: Trigger.dev is a platform for building and deploying fully managed AI agents and…. This entry ships a detection-only PoC and a Docker test lab.
| CVE | CVE-2026-73658 |
| Severity | High (8.2) |
| Detection / prevention | — |
| PoC | poc.py |
| Source | 2026/CVE-2026-73658/ |
Details¶
English | 한국어
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.
Vulnerability Details¶
| Property | Value |
|---|---|
| CVE ID | CVE-2026-73658 |
| Type | RCE |
| CVSS Score | 8.2 |
Proof of Concept¶
Download¶
# Download PoC script
curl -O https://raw.githubusercontent.com/fankh/vulnerability-poc/main/2026/CVE-2026-73658/poc.py
Usage¶
# Run PoC against target
python3 poc.py --target <TARGET_URL>
# With authentication
python3 poc.py --target <TARGET_URL> --username <USER> --password <PASS>
⚠️ Warning: This PoC is for authorized security testing only. It uses detection-only techniques and does not exploit or damage target systems.
Test Lab¶
This repository includes a Docker-based test environment with both vulnerable and patched applications.
Quick Start¶
# Clone and navigate to CVE directory
cd CVE-2026-73658
# Start both applications
docker-compose up -d
# Run tests
./run-tests.sh # Linux/Mac
./run-tests.ps1 # Windows PowerShell
Application Endpoints¶
| Application | URL | Status |
|---|---|---|
| Vulnerable App | http://localhost:8080 | Shows vulnerability |
| Patched App | http://localhost:8081 | Demonstrates fix |
Directory Structure¶
├── README.md # English documentation
├── README_KO.md # Korean documentation
├── poc.py # PoC detection script
├── docker-compose.yml # Container orchestration
├── run-tests.sh # Linux/Mac test runner
├── run-tests.ps1 # Windows test runner
├── vulnerable-app/ # Vulnerable version
│ ├── app.py
│ ├── Dockerfile
│ └── requirements.txt
└── patched-app/ # Fixed version
├── app.py
├── Dockerfile
└── requirements.txt
References¶
- https://github.com/triggerdotdev/trigger.dev/commit/db4074df54db06b0656becf3f974345c90fa202e
- https://github.com/triggerdotdev/trigger.dev/pull/3830
- https://github.com/triggerdotdev/trigger.dev/releases/tag/v4.5.0-rc.5
- https://github.com/triggerdotdev/trigger.dev/security/advisories/GHSA-888c-px7m-736v
- https://github.com/triggerdotdev/trigger.dev/security/advisories/GHSA-888c-px7m-736v
Generated by PoC Generator on 2026-08-15T13:37:02.255169112
Frequently asked questions¶
What is CVE-2026-73658?¶
CVE-2026-73658 is a High (8.2) vulnerability: Trigger.dev is a platform for building and deploying fully managed AI agents and…. This entry ships a detection-only PoC and a Docker test lab.
How do I detect CVE-2026-73658?¶
Run the detection-only PoC included with this entry against your Docker test lab to confirm whether a target is affected; pair it with your own IDS logging.
How do I block or mitigate CVE-2026-73658?¶
Upgrade to a fixed version per the vendor advisory; the NVD record lists the affected versions. Use the included PoC to verify your remediation.
For authorized security testing and research only. See the full source and NVD record.