---
id: "CVE-2026-114074"
kind: "vulnerability"
aliases: ["CVE-2026-114074"]
title: "Trigger.dev: webhook SSRF lets project members reach internal 198.18.0.0/15 services"
severity: "medium"
cvss: 5.4
epss: 0.00255
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["package", "self-hosted", "trigger.dev", "webhooks"]
not_affected_if: ["auth-required", "managed-hosting"]
published_at: "2026-10-21T01:17:31+00:00"
first_seen_at: "2026-10-23T21:57:27+00:00"
updated_at: "2026-10-25T04:14:42+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-114074", "first_seen_at": "2026-10-23T21:57:27+00:00"}, {"source": "epss", "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-114074", "first_seen_at": "2026-10-24T13:15:55+00:00"}]
---

# Trigger.dev: webhook SSRF lets project members reach internal 198.18.0.0/15 services

Trigger.dev before 4.5.10 fails to block the 198.18.0.0/15 benchmarking range in its webhook SSRF filter. An authenticated project member can point an alert-channel webhook at internal services in that range and send blind probes and limited state-changing POST requests.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the installed Trigger.dev version against `4.5.10`
- Review alert-channel webhook URLs in the project for targets in 198.18.0.0/15

## Fix

- Upgrade Trigger.dev to `4.5.10` or later
- Block outbound traffic from the Trigger.dev server to 198.18.0.0/15 at the network layer as an interim measure

## Timeline

- 2026-10-23T21:57:27+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-114074
- 2026-10-24T13:15:55+00:00 epss https://api.first.org/data/v1/epss?cve=CVE-2026-114074

## From the sources

Trigger.dev before 4.5.10 contains a server-side request forgery vulnerability that allows authenticated project members to bypass webhook SSRF protections by targeting the non-global 198.18.0.0/15 benchmarking range. Attackers can configure alert-channel webhooks pointing at internally routed services in this range, which isUnsafeIPv4 omits, to perform blind internal probing and limited state-changing POST requests.

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_