What’s Vulnerable › Vulnerabilities
CVE-2026-32133: 2FAuth has Blind SSRF in image parameter allows internal network access and more
- Severity: critical (CVSS 9.1 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.5% probability of exploitation in the next 30 days
- Public exploit or detection template: yes
- Published: 2026-03-11 · updated 2026-06-17
- Weakness: CWE-918
Description
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 products
- Bubka 2FAuth: before 6.1.0 — fixed in 6.1.0
How to fix
Upgrade to a fixed version: Bubka 2FAuth 6.1.0. Check the vendor advisory for mitigations.
References
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