EUVD-2026-14921

Vikjuna: IDOR in Task Attachment ReadOne Allows Cross-Project File Access and Deletion...

EUVD-2026-14920

Vikjuna: Webhook BasicAuth Credentials Exposed to Read-Only Project Collaborators via API...

Information Exposure

Overview Affected versions of this package are vulnerable to Information Exposure via the ReadAll process. An attacker can obtain plaintext BasicAuth credentials intended for external webhook authentication by accessing the API with only read permissions to a project. Remediation Upgrade...

EUVD-2026-14917

Vikunja has Cross-Project Information Disclosure via Task Relations — Missing Authorization Check on Related Task Read...

EUVD-2026-14916

Vikunja has SSRF via Todoist/Trello Migration File Attachment URLs that Allows Reading Internal Network Resources...

GHSA-G66V-54V9-52PR Vikunja has SSRF via Todoist/Trello Migration File Attachment URLs that Allows Reading Internal Network Resources

Summary The migration helper functions DownloadFile and DownloadFileWithHeaders in pkg/modules/migration/helpers.go make arbitrary HTTP GET requests without any SSRF protection. When a user triggers a Todoist or Trello migration, file attachment URLs from the third-party API response are passed...

EUVD-2026-14913

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

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...

SUSE CVE-2026-27575

Vikunja is an open-source self-hosted task management platform. Prior to version 2.0.0, the application allows users to set weak passwords e.g., 1234, password without enforcing minimum strength requirements. Additionally, active sessions remain valid after a user changes their password. An...

SUSE CVE-2026-27616

Vikunja is an open-source self-hosted task management platform. Prior to version 2.0.0, the application allows users to upload SVG files as task attachments. SVG is an XML-based format that supports JavaScript execution through elements such as tags or event handlers like onload. The application...

SUSE CVE-2026-28268

Vikunja is an open-source self-hosted task management platform. Versions prior to 2.1.0 have a business logic vulnerability exists in the password reset mechanism of vikunja/api that allows password reset tokens to be reused indefinitely. Due to a failure to invalidate tokens upon use and a...

Vikunja has Cross-Project Information Disclosure via Task Relations — Missing Authorization Check on Related Task Read

When the Vikunja API returns tasks, it populates the relatedtasks field with full task objects for all related tasks without checking whether the requesting user has read permission on those tasks' projects. An authenticated user who can read a task that has cross-project relations will receive...

CVE-2026-33680

Vikunja is an open-source self-hosted task management platform. Prior to version 2.2.2, the LinkSharing.ReadAll method allows link share authenticated users to list all link shares for a project, including their secret hashes. While LinkSharing.CanRead correctly blocks link share users from readi...

CVE-2026-33700

Vikunja is an open-source self-hosted task management platform. Prior to version 2.2.1, the DELETE /api/v1/projects/:project/shares/:share endpoint does not verify that the link share belongs to the project specified in the URL. An attacker with admin access to any project can delete link shares...

CVE-2026-33677

Vikunja is an open-source self-hosted task management platform. Prior to version 2.2.1, the GET /api/v1/projects/:project/webhooks endpoint returns webhook BasicAuth credentials basicauthuser and basicauthpassword in plaintext to any user with read access to the project. While the existing code...

CVE-2026-33678

Vikunja is an open-source self-hosted task management platform. Prior to version 2.2.1, TaskAttachment.ReadOne queries attachments by ID only WHERE id = ?, ignoring the task ID from the URL path. The permission check in CanRead validates access to the task specified in the URL, but ReadOne loads ...

CVE-2026-33679

Vikunja is an open-source self-hosted task management platform. Prior to version 2.2.1, the DownloadImage function in pkg/utils/avatar.go uses a bare http.Client with no SSRF protection when downloading user avatar images from the OpenID Connect picture claim URL. An attacker who controls their...

CVE-2026-33676

Vikunja is an open-source self-hosted task management platform. Prior to version 2.2.1, when the Vikunja API returns tasks, it populates the relatedtasks field with full task objects for all related tasks without checking whether the requesting user has read permission on those tasks' projects. A...

CVE-2026-33675

Vikunja is an open-source self-hosted task management platform. Prior to version 2.2.1, the migration helper functions DownloadFile and DownloadFileWithHeaders in pkg/modules/migration/helpers.go make arbitrary HTTP GET requests without any SSRF protection. When a user triggers a Todoist or Trell...

CVE-2026-33474

Vikunja is an open-source self-hosted task management platform. Starting in version 1.0.0-rc0 and prior to version 2.2.0, unbounded image decoding and resizing during preview generation lets an attacker exhaust CPU and memory with highly compressed but extremely large-dimension images. Version...