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CVE-2026-35601

4.1 medium SSVC exploitation: poc Analyzed
NVD · CVE.org

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.

Fix

Patch, vendor advisory and mitigation references on NVD 2

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 1

  1. First seenCVSS 4.1 · vikunjaNVD modified 2026-10-26 21:10

Affected (CPE criteria) 1

  • cpe:2.3:a:vikunja:vikunja:*:*:*:*:*:*:*:*

References 4