Vendor
Bubka vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 5 vulnerabilities in Bubka: 5 in the last 7 days and 5 in the last 90 days, 2 of them critical and 0 exploited in the wild. The most recent, CVE-2026-63441, was published on 6 November 2026. 5 vulnerabilities in the last four weeks, up from none in the four before. 2 critical against 0. 1 technology has a page of its own.
- Last 7 days
- 5
- Last 90 days
- 5
- Critical, all time
- 2
- Exploited in the wild
- 0
About Bubka
Software organization or developer known for 2FAuth two-factor authentication web application.
Bubka technologies
Latest Bubka vulnerabilities
- CVE-2026-63441: 2FAuth SSRF via unrecognized IPv6 NAT64 prefixesinfo
- CVE-2026-63440: 2FAuth SSRF via DNS rebinding in otpauth image fetchmediumCVSS 5.9
- CVE-2026-63439: 2FAuth reverse proxy authentication bypasscriticalCVSS 9.8
- CVE-2026-63438: 2FAuth reverse-proxy authentication bypass leading to account creationcriticalCVSS 9.8
- CVE-2026-63437: 2FAuth missing authorization on share recipients endpointmediumCVSS 6.5
Most severe Bubka vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2026-63439: 2FAuth reverse proxy authentication bypasscriticalCVSS 9.8
- CVE-2026-63438: 2FAuth reverse-proxy authentication bypass leading to account creationcriticalCVSS 9.8
- CVE-2026-63437: 2FAuth missing authorization on share recipients endpointmediumCVSS 6.5
- CVE-2026-63440: 2FAuth SSRF via DNS rebinding in otpauth image fetchmediumCVSS 5.9
- CVE-2026-63441: 2FAuth SSRF via unrecognized IPv6 NAT64 prefixesinfo
Vulnerabilities per week
5 vulnerabilities in the last four weeks, up from none in the four before. 2 critical against 0. The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 17 Aug 2026 | 0 | 0 | |
| 24 Aug 2026 | 0 | 0 | |
| 31 Aug 2026 | 0 | 0 | |
| 7 Sep 2026 | 0 | 0 | |
| 14 Sep 2026 | 0 | 0 | |
| 21 Sep 2026 | 0 | 0 | |
| 28 Sep 2026 | 0 | 0 | |
| 5 Oct 2026 | 0 | 0 | |
| 12 Oct 2026 | 0 | 0 | |
| 19 Oct 2026 | 0 | 0 | |
| 26 Oct 2026 | 0 | 0 | |
| 2 Nov 2026 | 5 | 2 | |
| 9 Nov 2026 | 0 | 0 |
Embed a badge
A live badge for a README, a status page or an internal wiki: how many Bubka vulnerabilities were published in the last 7 days and how many of them are critical, refreshed hourly.
[](https://junglewise.ai/threats/vendors/bubka)<a href="https://junglewise.ai/threats/vendors/bubka"><img src="https://junglewise.ai/threats/vendors/bubka/badge.svg" alt="Bubka vulnerabilities" /></a>How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/vendors/bubka.json, and this page as text at https://junglewise.ai/threats/vendors/bubka.md, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "Bubka vulnerabilities", https://junglewise.ai/threats/vendors/bubka, 9 November 2026.