CVE-2026-32133: 2FAuth has Blind SSRF in image parameter allows internal network access and more
2FAuth is a web app to manage Two-Factor Authentication (2FA) accounts and generate their security codes. Prior to 6.1.0, a blind SSRF vulnerability exists in 2FAuth that allows authenticated users to make arbitrary HTTP requests from the server to internal networks and cloud metadata endpoints. The image parameter in OTP URL is not properly validated for internal / private IP addresses before making HTTP requests. While the previous fix added response validation to ensure only valid images are stored but HTTP request is still made to arbitrary URLs before this validation occurs. This vulnerability is fixed in 6.1.0.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-32133?
CVE-2026-32133 is categorized as a critical vulnerability due to its capability to allow authenticated users unauthorized access to the internal network.
How do I fix CVE-2026-32133?
To fix CVE-2026-32133, upgrade to version 6.1.0 or higher of the 2FAuth application.
What causes CVE-2026-32133?
CVE-2026-32133 is caused by a blind Server-Side Request Forgery (SSRF) vulnerability present in the image parameter of the 2FAuth application.
Who is affected by CVE-2026-32133?
Users operating versions prior to 6.1.0 of the 2FAuth application are affected by CVE-2026-32133.
What can an attacker do with CVE-2026-32133?
An attacker could exploit CVE-2026-32133 to make arbitrary HTTP requests to internal services that are otherwise not exposed to external users.