PT-2026-49655 · Syracom Ag · Secure Login (2Fa) For Bitbucket+2

Published 2026-06-16 · Updated 2026-06-16 · CVE-2026-12225

Mitre

CVSS v4.0

8.7

High

Base vector

AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

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.

Fix

Authentication Bypass Using an Alternate Path or Channel

Weakness Enumeration

CWE-288

Related Identifiers

CVE-2026-12225

Affected Products

Secure Login (2Fa) For Bitbucket

Secure Login (2Fa) For Confluence

Secure Login (2Fa) For Jira

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2026-12225 · Security Note
• https://syracom-bee.atlassian.net/wiki/spaces/SL/pages/4193255427/2026-05-11+-+Secure+Login+security+advisory+-+Broken+Access+Control · Vendor Advisory
• https://syracom-bee.atlassian.net/wiki/spaces/SL/pages/4230217729/Mobile+app+login+does+not+work+with+Secure+Login · Note
• https://r.sec-consult.com/syracom · Note
• https://marketplace.atlassian.com/apps/1214491/secure-login-2fa-for-confluence · Note