CVE-2026-35601 Vikunja has an iCalendar Property Injection via CRLF in CalDAV Task Output

Vikunja is an open-source self-hosted task management platform. Prior to 2.3.0, the CalDAV output generator builds iCalendar VTODO entries via raw string concatenation without applying RFC 5545 TEXT value escaping. User-controlled task titles containing CRLF characters break the iCalendar propert...

CVE-2026-35598

Vikunja CalDAV Read vulnerability (CVE-2026-35598): CalDAV GetResource/GetResourcesByList fetch tasks by UID without enforcing authorization, allowing any authenticated CalDAV user who knows or guesses a task UID to read full task data from any project. Affects Vikunja before v2.3.0; fixed in v2....

CVE-2026-35598 Vikunja has Missing Authorization on CalDAV Task Read

Vikunja is an open-source self-hosted task management platform. Prior to 2.3.0, the CalDAV GetResource and GetResourcesByList methods fetch tasks by UID from the database without verifying that the authenticated user has access to the task's project. Any authenticated CalDAV user who knows or...

CRLF Injection

Overview Affected versions of this package are vulnerable to CRLF Injection via improper handling of user-supplied input in the ParseTodos function. An attacker can inject arbitrary iCalendar properties by including CRLF characters in task titles or other fields, which are then concatenated into...

GHSA-2G7H-7RQR-9P4R Vikunja has iCalendar Property Injection via CRLF in CalDAV Task Output

Summary The CalDAV output generator builds iCalendar VTODO entries via raw string concatenation without applying RFC 5545 TEXT value escaping. User-controlled task titles containing CRLF characters break the iCalendar property boundary, allowing injection of arbitrary iCalendar properties such as...

Missing Authorization

Overview Affected versions of this package are vulnerable to Missing Authorization in the GetResource and GetResourcesByList processes. An attacker can access sensitive task data from projects they do not have permission to view by making authenticated CalDAV requests with a known or guessed task...

Vikunja Missing Authorization on CalDAV Task Read

Summary The CalDAV GetResource and GetResourcesByList methods fetch tasks by UID from the database without verifying that the authenticated user has access to the task's project. Any authenticated CalDAV user who knows or guesses a task UID can read the full task data from any project on the...

GHSA-48CH-P4GQ-X46X Vikunja Missing Authorization on CalDAV Task Read

Summary The CalDAV GetResource and GetResourcesByList methods fetch tasks by UID from the database without verifying that the authenticated user has access to the task's project. Any authenticated CalDAV user who knows or guesses a task UID can read the full task data from any project on the...

Vikunja 安全漏洞

Vikunja is an open-source to-do application developed by Vikunja. Versions of Vikunja prior to 2.3.0 contained security vulnerabilities. These vulnerabilities stemmed from the CalDAV method, which did not verify the user’s access rights to task items when retrieving tasks by UID. This could allow...

PT-2026-31949

Name of the Vulnerable Software and Affected Versions Vikunja versions prior to 2.3.0 Description The CalDAV GetResource and GetResourcesByList methods retrieve tasks by UID from the database without verifying the authenticated user's access to the task's project. This allows any authenticated...

SUSE CVE-2026-33315

Vikunja is an open-source self-hosted task management platform. Prior to version 2.2.0, the Caldav endpoint allows login using Basic Authentication, which in turn allows users to bypass the TOTP on 2FA-enabled accounts. The user can then access standard project information that would normally be...

SUSE CVE-2026-33668

Vikunja is an open-source self-hosted task management platform. Starting in version 0.18.0 and prior to version 2.2.1, when a user account is disabled or locked, the status check is only enforced on the local login and JWT token refresh paths. Three other authentication paths - API tokens, CalDAV...

CVE-2026-33315

Vikunja is an open-source self-hosted task management platform. Prior to version 2.2.0, the Caldav endpoint allows login using Basic Authentication, which in turn allows users to bypass the TOTP on 2FA-enabled accounts. The user can then access standard project information that would normally be...

Vikunja Allows Disabled/Locked User Accounts to Authenticate via API Tokens, CalDAV, and OpenID Connect

Summary When a user account is disabled or locked, the status check is only enforced on the local login and JWT token refresh paths. Three other authentication paths — API tokens, CalDAV basic auth, and OpenID Connect — do not verify user status, allowing disabled or locked users to continue...

Improper Authorization

Overview Affected versions of this package are vulnerable to Improper Authorization in the authentication process. An attacker can maintain unauthorized access to resources by using valid API tokens, CalDAV credentials, or OpenID Connect authentication even after the account has been disabled or...

Improper Authorization

Overview Affected versions of this package are vulnerable to Improper Authorization in the authentication process. An attacker can maintain unauthorized access to resources by using valid API tokens, CalDAV credentials, or OpenID Connect authentication even after the account has been disabled or...

GHSA-94XM-JJ8X-3CR4 Vikunja Allows Disabled/Locked User Accounts to Authenticate via API Tokens, CalDAV, and OpenID Connect

Summary When a user account is disabled or locked, the status check is only enforced on the local login and JWT token refresh paths. Three other authentication paths — API tokens, CalDAV basic auth, and OpenID Connect — do not verify user status, allowing disabled or locked users to continue...

Vikunja Allows Disabled/Locked User Accounts to Authenticate via API Tokens, CalDAV, and OpenID Connect

When a user account is disabled or locked, the status check is only enforced on the local login and JWT token refresh paths. Three other authentication paths — API tokens, CalDAV basic auth, and OpenID Connect — do not verify user status, allowing disabled or locked users to continue accessing th...

CVE-2026-33668

Vikunja vulnerability (CVE-2026-33668) affects versions prior to 2.2.1. When a user is disabled or locked, status checks are enforced only on local login and JWT refresh paths; API tokens, CalDAV basic auth, and OpenID Connect do not verify user status, allowing disabled/locked users to continue ...

CVE-2026-33668 Vikunja Allows Disabled/Locked User Accounts to Authenticate via API Tokens, CalDAV, and OpenID Connect

Vikunja is an open-source self-hosted task management platform. Starting in version 0.18.0 and prior to version 2.2.1, when a user account is disabled or locked, the status check is only enforced on the local login and JWT token refresh paths. Three other authentication paths — API tokens, CalDAV...