CVE-2026-35598

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.

• CWE-862

• https://github.com/go-vikunja/vikunja/commit/879462d717351fe5d276ddec5246bdec31b41661Patch
• https://github.com/go-vikunja/vikunja/pull/2579Issue Tracking
• https://github.com/go-vikunja/vikunja/releases/tag/v2.3.0Release Notes
• https://github.com/go-vikunja/vikunja/security/advisories/GHSA-48ch-p4gq-x46xExploit, Vendor Advisory
• https://github.com/go-vikunja/vikunja/security/advisories/GHSA-48ch-p4gq-x46xExploit, Vendor Advisory

Published

Apr 10, 2026

Last Modified

Jun 17, 2026

Status

Analyzed

• Uncovering a hidden BOLA in Appsmith's snapshot logicStrix autonomously discovered a BOLA/IDOR vulnerability in Appsmith's snapshot deletion path.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2026-35592pyLoad is a free and open-source download manager written in…6.5
• CVE-2026-35593Trilium Notes is an open-source, cross-platform hierarchical…6.8
• CVE-2026-35594Vikunja is an open-source self-hosted task management platfo…6.5
• CVE-2026-35595Vikunja is an open-source self-hosted task management platfo…8.3
• CVE-2026-35596Vikunja is an open-source self-hosted task management platfo…4.3
• CVE-2026-35597Vikunja is an open-source self-hosted task management platfo…7.5
• CVE-2026-35599Vikunja is an open-source self-hosted task management platfo…6.5
• CVE-2026-3560Philips Hue Bridge HomeKit hk_hap_pair_storage_put Heap-base…8.8
• CVE-2026-35600Vikunja is an open-source self-hosted task management platfo…5.4
• CVE-2026-35601Vikunja is an open-source self-hosted task management platfo…4.1
• CVE-2026-35602Vikunja is an open-source self-hosted task management platfo…7.1
• CVE-2026-35603Claude Code is an agentic coding tool. In versions prior to …7.3