Vikunja is an open-source self-hosted task management platform.

Code

The project this record applies to. Exploit listings stay in References.

• Repository · github.com

Timeline

Detection, updates, and resolution for this record.

1. Apr 10, 2026 · NIST NVD

   Detected

   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.

2. Jun 17, 2026 · NIST NVD

   Updated

   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.

Affected

• cpe vikunja/vikunjaversion unspecified

Sources

• CVE.orgVulnerability recordCVE-2026-35601

  Official CVE identifier

  cve.org
• NIST NVDVulnerability recordCVE-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

  nvd.nist.gov

References

• Issue Tracking · github.com
• Release Notes · github.com
• Exploit · github.com