CVEvulnerability
CVE-2026-35601
4.1 MEDIUM
Official page ↗
- Status
- Analyzed
- Published
- 2026-04-10
- Last modified
- 2026-10-26
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 4.1 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:L/A:N
- Weaknesses
- CWE-93
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.
Affected configurations
• vikunja vikunja (< 2.3.0)
Related
Weakness · CWE (1)
- CWE-93 Improper Neutralization of CRLF Sequences weakness
References
- https://github.com/go-vikunja/vikunja/pull/2580 Issue Tracking
- https://github.com/go-vikunja/vikunja/releases/tag/v2.3.0 Release Notes
- https://github.com/go-vikunja/vikunja/security/advisories/GHSA-2g7h-7rqr-9p4r Exploit, Vendor Advisory
- https://github.com/go-vikunja/vikunja/security/advisories/GHSA-2g7h-7rqr-9p4r Exploit, Vendor Advisory