CVE-2026-35601

Published Apr 10, 2026

Last updated 13 days ago

Overview

Description
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 property boundary, allowing injection of arbitrary iCalendar properties such as ATTACH, VALARM, or ORGANIZER. This vulnerability is fixed in 2.3.0.
Source
security-advisories@github.com
NVD status
Analyzed
Products
vikunja

Risk scores

CVSS 3.1

Type
Secondary
Base score
4.1
Impact score
1.4
Exploitability score
2.3
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:L/A:N
Severity
MEDIUM

Weaknesses

security-advisories@github.com
CWE-93

Social media

Hype score
Not currently trending

Configurations