CVE-2026-35598

MEDIUM

Vikunja has Missing Authorization on CalDAV Task Read

Title source: cna

Description

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 guesses) a task UID can read the full task data from any project on the instance. This vulnerability is fixed in 2.3.0.

References (4)

[X_Refsource_Confirm] https://github.com/go-vikunja/vikunja/security/advisories/GHSA-48ch-p4gq-x46x

[X_Refsource_Misc] https://github.com/go-vikunja/vikunja/pull/2579

[X_Refsource_Misc] https://github.com/go-vikunja/vikunja/commit/879462d717351fe5d276ddec5246bdec31b41661

View Writeup ZIP pw:eip

[X_Refsource_Misc] https://github.com/go-vikunja/vikunja/releases/tag/v2.3.0

Scores

CVSS v3 4.3

EPSS 0.0003

EPSS Percentile 8.3%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Details

CWE

CWE-862

Status published

Products (3)

code.vikunja.io/api 0 - 2.3.0Go

go-vikunja/vikunja < 2.3.0

vikunja/vikunja < 2.3.0

Published Apr 10, 2026

Tracked Since Apr 10, 2026