CVE-2026-12225
syracom Secure Login (2FA) for Confluence allows 2FA bypass via spoofed User-Agent
Description
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.
INFO
Published Date :
June 16, 2026, 12:16 p.m.
Last Modified :
June 16, 2026, 12:16 p.m.
Remotely Exploit :
Yes !
Source :
551230f0-3615-47bd-b7cc-93e92e730bbf
Affected Products
The following products are affected by CVE-2026-12225
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 4.0 | HIGH | 551230f0-3615-47bd-b7cc-93e92e730bbf | ||||
| CVSS 4.0 | HIGH | 551230f0-3615-47bd-b7cc-93e92e730bbf |
Solution
- Update syracom AG Secure Login plugin to 3.5.0.0.
- Verify 2FA enforcement after update.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-12225.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-12225 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-12225
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-12225 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-12225 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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New CVE Received by 551230f0-3615-47bd-b7cc-93e92e730bbf
Jun. 16, 2026
Action Type Old Value New Value Added Description 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. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CWE CWE-288 Added Reference https://marketplace.atlassian.com/apps/1214491/secure-login-2fa-for-confluence Added Reference https://r.sec-consult.com/syracom Added Reference https://syracom-bee.atlassian.net/wiki/spaces/SL/pages/4193255427/2026-05-11+-+Secure+Login+security+advisory+-+Broken+Access+Control Added Reference https://syracom-bee.atlassian.net/wiki/spaces/SL/pages/4230217729/Mobile+app+login+does+not+work+with+Secure+Login