CVE-2026-35601

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Source
https://cve.org/CVERecord?id=CVE-2026-35601
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-35601.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-35601
Aliases
Downstream
Related
Published
2026-04-10T16:08:50Z
Modified
2026-10-16T02:59:02Z
Severity
  • 4.1 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:L/A:N CVSS Calculator
Summary
Vikunja has an iCalendar Property Injection via CRLF in CalDAV Task Output
Details

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.

Database specific 
{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-93"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/35xxx/CVE-2026-35601.json"
}
References

Affected packages

Git / github.com/go-vikunja/vikunja

Affected ranges

Type
GIT
Repo
https://github.com/go-vikunja/vikunja
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
28b537837f9808dc106c9058b5829c65759fddf2
Database specific
Show details 
{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "fixed":  "2.3.0"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StringRangeExpression"
        },
        {
            "original_tag":  "v2.3.0",
            "range":  [
                {
                    "fixed":  "28b537837f9808dc106c9058b5829c65759fddf2"
                }
            ],
            "source":  "REFERENCES_TAG"
        },
        {
            "cpe":  "cpe:2.3:a:vikunja:vikunja:*:*:*:*:*:*:*:*",
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "fixed":  "2.3.0"
                }
            ],
            "source":  "CPE_RANGE"
        }
    ]
}

Affected versions

v0.*
v0.1
v0.10
v0.11
v0.12
v0.13
v0.14.0
v0.15.0
v0.16.0
v0.17.0
v0.18.0
v0.18.1
v0.19.0
v0.19.1
v0.19.2
v0.2
v0.20.0
v0.20.1
v0.20.3
v0.20.4
v0.21.0
v0.22.0
v0.22.1
v0.23.0
v0.24.1
v0.3
v0.4
v0.5
v0.6
v0.7
v0.8
v0.9
v1.*
v1.0.0
v1.0.0-rc0
v1.0.0-rc1
v1.0.0-rc2
v1.0.0-rc3
v1.0.0-rc4
v1.1.0
v2.*
v2.0.0
v2.1.0
v2.2.0
v2.2.1
v2.2.2

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-35601.json"