---
id: CVE-2026-114086
title: >-
  Trigger.dev before 4.5.5 Unauthenticated Realtime Stream Data Injection via
  Streams Endpoint
summary: >-
  Trigger.dev before 4.5.5 contains a missing authentication vulnerability in
  the realtime streams POST handler that allows unauthenticated attackers to
  inject data into run streams. Attackers can send POST requests to
  /realtime/v1/streams…
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N'
cvssSource: cna
cwe:
  - CWE-306
vendor: triggerdotdev
product: trigger.dev
affected:
  - trigger.dev < 4.5.5
published: '2026-10-21'
updated: '2026-10-21'
sourceUpdated: '2026-10-21T00:36:52.744Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-114086'
references:
  - url: >-
      https://github.com/triggerdotdev/trigger.dev/security/advisories/GHSA-59h8-w5q6-mfmp
    label: GitHub Security Advisory (GHSA-59h8-w5q6-mfmp)
  - url: >-
      https://www.vulncheck.com/advisories/trigger-dev-before-4.5.5-unauthenticated-realtime-stream-data-injection-via-streams-endpoint
    label: >-
      VulnCheck Advisory: Trigger.dev before 4.5.5 Unauthenticated Realtime
      Stream Data Injection via Streams Endpoint
tags:
  - cve.org
ingestedAt: '2026-10-21T01:37:08.020Z'
---

## Overview

Trigger.dev before 4.5.5 contains a missing authentication vulnerability in the realtime streams POST handler that allows unauthenticated attackers to inject data into run streams. Attackers can send POST requests to /realtime/v1/streams/:runId/:streamId with a predictable run friendlyId to inject arbitrary data into any environment's realtime stream, including production.

## Affected

- `trigger.dev < 4.5.5`

## Remediation

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