Is CVE-2026-35595 actively exploited?

A proof-of-concept exploit is publicly available for CVE-2026-35595, but active exploitation has not been confirmed.

Can CVE-2026-35595 be exploited remotely?

Yes. CVE-2026-35595 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-35595?

CVE-2026-35595 has a CVSS score of 8.3 (HIGH).

HOME VULNERABILITIESCVE-2026-35595

HIGHPOC

CVE-2026-35595

CWE-269Published: April 10, 2026· Updated: Apr 13, 2026

8.3

CVSS v3.1

Official Description

Vikunja is an open-source self-hosted task management platform. Prior to 2.3.0, the CanUpdate check at pkg/models/project_permissions.go:139-148 only requires CanWrite on the new parent project when changing parent_project_id. However, Vikunja's permission model uses a recursive CTE that walks up the project hierarchy to compute permissions. Moving a project under a different parent changes the permission inheritance chain. When a user has inherited Write access (from a parent project share) and reparents the child project under their own project tree, the CTE resolves their ownership of the new parent as Admin (permission level 2) on the moved project. This vulnerability is fixed in 2.3.0.

NVD Source

Technical Analysis

CVE-2026-35595 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), with a CVSS base score of 8.3.

A proof-of-concept (PoC) exploit exists for CVE-2026-35595. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.