What is CVE-2026-35601?

CVE-2026-35601 is a medium-severity vulnerability in Go-vikunja Vikunja, classified under CRLF Injection. CVSS score: 4.1/10. Published 2026-04-10.

How severe is CVE-2026-35601?

Medium severity. CVSS v3 base score is 4.1 out of 10.

Vulnerability in Go-vikunja Vikunja

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 tit…

Vulnerability class: CRLF Injection

EPSS: 0.000 (9.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:L/A:N.

Affected products

Go-vikunja Vikunja — versions < 2.3.0

Weakness classification (CWE)

CWE-93 — CRLF Injection

References

https://github.com/go-vikunja/vikunja/security/advisories/GHSA-2g7h-7rqr-9p4r (x_refsource_CONFIRM)
https://github.com/go-vikunja/vikunja/pull/2580 (x_refsource_MISC)
https://github.com/go-vikunja/vikunja/releases/tag/v2.3.0 (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-35601?: CVE-2026-35601 is a medium-severity vulnerability in Go-vikunja Vikunja, classified under CRLF Injection. CVSS score: 4.1/10. Published 2026-04-10.
How severe is CVE-2026-35601?: Medium severity. CVSS v3 base score is 4.1 out of 10.