CVE-2026-12225 (GCVE-0-2026-12225)

Vulnerability from cvelistv5 – Published: 2026-06-16 11:20 – Updated: 2026-06-16 12:09
VLAI
Title
syracom Secure Login (2FA) for Confluence allows 2FA bypass via spoofed User-Agent
Summary
syracom AG Secure Login (2FA) for Atlassian Jira, Confluence, and Bitbucket 3.4.0.x contains an authentication bypass vulnerability. An attacker with valid credentials for a user account can bypass the two-factor authentication flow by sending HTTP requests with a crafted User-Agent header containing specific strings such as AtlassianMobileApp or JIRA. When such a User-Agent is present, the plugin does not enforce the configured 2FA checks for protected web resources. Successful exploitation allows the attacker to access the affected Atlassian application as the compromised user without completing 2FA. If the compromised account has administrative privileges, the attacker can access administrative functionality and may disable the 2FA plugin or make arbitrary administrative changes. The issue is fixed in version 3.5.0.0.
Severity
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-288 - Authentication bypass using an alternate path or channel
Assigner
References
Impacted products
Credits
Laurentius von Oppenkowski, SEC Consult Vulnerability Lab Timo Müller, SEC Consult Vulnerability Lab
Show details on NVD website
To clipboard 

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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