CVE-2026-32133: Bubka 2FAuth · Server-Side Request Forgery (SSRF)
Affects Bubka 2FAuthSource CVE Database V5
Not known to be exploited · CVSS 7.8 High : upgrade to 6.1.0 soon.
Data as of 30 Oct 2026, 11:52 UTC
- EPSS
- 0.5% chance of exploitation in 30 days – higher than 45% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 6.1.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 11 Mar 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.
What to do
Upgrade 2FAuth and bubka/2FAuth to 6.1.0.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Bubka2FAuth | Affected
| Fixed in
|
GitHubbubka/2FAuthpkg:github/bubka/2FAuthOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
To mitigate this vulnerability, organizations should immediately upgrade Bubka 2FAuth to version 6.1.0 or later, where the SSRF issue is fixed. In addition to patching, network-level controls should be implemented to restrict outbound HTTP requests from the 2FAuth server to only trusted external endpoints, blocking access to internal IP ranges and cloud metadata service IPs. Web application firewalls (WAFs) can be configured to detect and block suspicious SSRF patterns, particularly requests containing manipulated image parameters. Administrators should audit and monitor logs for unusual outbound requests originating from the 2FAuth server. Employing network segmentation to isolate the 2FAuth server from sensitive internal resources can limit the potential impact of SSRF exploitation. Finally, review and harden cloud instance metadata service access policies, such as enabling metadata service version 2 (IMDSv2) or equivalent protections, to reduce risk from SSRF attacks targeting cloud environments.
Description
CVE-2026-32133 is a high-severity Server-Side Request Forgery (SSRF) vulnerability affecting Bubka's 2FAuth web application versions prior to 6.1.0. The flaw allows unauthenticated attackers to make arbitrary HTTP requests from the server to internal networks and cloud metadata endpoints by exploiting improper validation of the image parameter in OTP URLs. Although a previous fix added response validation to restrict stored images, the vulnerable server still performs HTTP requests before validation, enabling blind SSRF attacks. This can lead to unauthorized access to internal resources, cloud metadata services, and potentially sensitive information. The vulnerability is fixed in version 6.1.0, and no known exploits are currently in the wild. Organizations using affected versions should upgrade immediately and implement network-level protections to mitigate risk.