CVE-2026-35601
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.
- CVSS 3.1
- 4.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:L/A:N - EPSS
- 0.2% chance of exploitation in the next 30 days; higher than 9% of CVEs (scores of 2026-10-26)
- CWE
- CWE-93
- Published
- Modified
- Record from
- the NVD, synced
Affected
- vikunja:vikunja
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-2g7h-7rqr-9p4r | Go | code.vikunja.io/api | <2.3.0 | 2.3.0 |
| GO-2026-4951 | Go | code.vikunja.io/api | all versions | no fix published |