CVE-2026-48762

Received Received - Intake

TypeBot OpenAI Transcription Action SSRF Vulnerability

Publication date: 2026-08-11

Last updated on: 2026-08-13

Assigner: GitHub, Inc.

Description

TypeBot is a chatbot builder tool. Prior to version 3.16.0, the OpenAI "Create Transcription" action handler fetches a user-supplied audio URL using `fetch()` without applying the SSRF protection that exists elsewhere in the codebase. An attacker can direct the server to make HTTP requests to arbitrary internal addresses and localhost. The fetched content is passed to the OpenAI Whisper API and the transcription result is returned to the attacker. Version 3.16.0 fixes the issue.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-08-11

Last Modified

2026-08-13

Generated

2026-09-01

AI Q&A

2026-08-12

EPSS Evaluated

2026-08-30

NVD

CVE-2026-48762

Affected Vendors & Products

Vendor	Product	Version / Range
openai	typebot	to 3.16.0 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-918	The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.

Attack-Flow Graph

Executive Summary

TypeBot is a chatbot builder tool. The vulnerability exists in versions before 3.16.0 where the OpenAI 'Create Transcription' action fetches a user-supplied audio URL using fetch() without SSRF protection. This allows an attacker to make the server request arbitrary internal addresses or localhost. The fetched content is sent to OpenAI Whisper API and the transcription result is returned to the attacker.

Detection Guidance

This vulnerability involves TypeBot fetching arbitrary audio URLs without SSRF protection before version 3.16.0. To detect it, monitor network traffic for outbound HTTP requests from TypeBot to internal or localhost addresses. Check TypeBot logs for unusual audio URL fetches or Whisper API calls. Ensure TypeBot is updated to version 3.16.0 or later.

Impact Analysis

An attacker could exploit this to access internal services or localhost on the server running TypeBot. This may lead to unauthorized data exposure, internal network scanning, or further attacks if internal services are vulnerable. The impact is limited to information accessible via HTTP requests and OpenAI API responses.

Compliance Impact

This vulnerability could lead to unauthorized access to sensitive data, potentially violating GDPR (data protection) and HIPAA (health information privacy) by exposing personal or health-related data. Organizations using TypeBot may face compliance violations if internal data is accessed.

Mitigation Strategies

Update TypeBot to version 3.16.0 or later to address the SSRF vulnerability in the OpenAI transcription handler.

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