Vulnerability details
CVE-2026-32133
Bubka 2FAuth
2FAuth has Blind SSRF in image parameter allows internal network access and more
CVSS 4.0
7.8High
Official 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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.8High | 4.0 | CVEProject cvelistV5 (CNA) (GitHub_M) | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Bubka | 2FAuth | < 6.1.0 | CVEProject cvelistV5 (CNA) |
References and advisories
1- https://github.com/Bubka/2FAuth/security/advisories/GHSA-8qp3-x2mp-j6f8 x_refsource_CONFIRM
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Details
- Published
- 2026-03-12
- Last updated
- 2026-03-12
- State
- Published
- Assigner (CNA)
- GitHub_M
Exploit prediction (EPSS)
0.58%
Probability of exploitation in 30 days
48.2%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- Proof of concept
- Technical impact
- Partial
Weaknesses (CWE)
- CWE-918Server-Side Request Forgery (SSRF)