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CVE-2026-35601Published

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 titl…

Exact source revision recorded 27 Oct 2026 09:03:12 UTC. It does not establish the source's current position. Latest evidence.

Recorded JSON

nvd · CVE-2026-35601

Published

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.

NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON.

Source analysis status: Analyzed

Weakness classifications: CWE-93

Original publisher date fields

published: 2026-04-10T17:17:03.837

lastModified: 2026-10-26T21:10:00.170

1 source CPE criteria · context only
  • cpe:2.3:a:vikunja:vikunja:*:*:*:*:*:*:*:*

The original JSON retains the logical configuration operators, exclusions and version bounds.

Source published
10 Apr 2026 17:17:03 UTC
Source modified
26 Oct 2026 21:10:00 UTC
Observed here
27 Oct 2026 09:03:12 UTC
Source terms
NIST NVD usage terms; underlying source attribution retained

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: nvd · NIST NVD usage terms; underlying source attribution retained. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS 3.1 · [email protected] · Secondary · 4.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:L/A:N

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Sources read 29 Oct 22:55 UTC · 272 of 272 readable · 271 fully read · documentation 469/469 current

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