CVE-2026-32133Public exploitNetwork attack vector

Authenticated SSRF via unchecked OTP image URL

Published Mar 11, 2026 · Updated Mar 11, 2026

Blind SSRF in Bubka 2FAuth before 6.1.0 allows remote authenticated users to send server-side HTTP requests to arbitrary URLs. The IconService buildFromRemoteImage path accepts the OTP URI image parameter after checking only for an HTTP or HTTPS URL, and storeRemoteImage fetches it before validating that the response is an image. Any authenticated user can reach the preview API, enabling blind access to internal services and cloud metadata endpoints that trust requests from the server.

CVSS severity7.8
High
EPSS probability0.51%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Blind SSRF in Bubka 2FAuth before 6.1.0 allows remote authenticated users to send server-side HTTP requests to arbitrary URLs. The IconService buildFromRemoteImage path accepts the OTP URI image parameter after checking only for an HTTP or HTTPS URL, and storeRemoteImage fetches it before validating that the response is an image. Any authenticated user can reach the preview API, enabling blind access to internal services and cloud metadata endpoints that trust requests from the server.

The record

CVE
CVE-2026-32133
Published
Mar 11, 2026
Updated
Mar 11, 2026
Vendor
Bubka
Product
2FAuth
Classifications
CWE-918, T1552.005
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 11, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 6.1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Bubka · 2FAuthversion=< 6.1.0

Published CVSS scores

7.8GitHub, Inc.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
9.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)
T1552.005Unsecured Credentials: Cloud Instance Metadata API

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo