CVE-2026-54766

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Source
https://cve.org/CVERecord?id=CVE-2026-54766
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-54766.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-54766
Aliases
Published
2026-08-28T16:36:57.857Z
Modified
2026-09-02T19:55:46.453854844Z
Severity
  • 5.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N CVSS Calculator
Summary
Vikunja: Project duplication bypasses write-permission check on the target parent project
Details

Vikunja is an open-source self-hosted task management platform. From 0.21.0 until 2.4.0, the project duplication operation in pkg/models/projectduplicate.go allows an authenticated user who can read a source project to place its duplicate beneath an arbitrary target parent project. ProjectDuplicate.CanCreate calls parent.CanCreate on an unhydrated Project containing only the body supplied parentproject_id instead of calling parent.CanWrite, so the target parent write-permission check is skipped. The ordinary project creation path enforces that permission, but PUT /api/v1/projects/{project}/duplicate does not, allowing attacker-owned content to be injected into another user or team project hierarchy. This issue is fixed in version 2.4.0.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54766.json",
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-285",
        "CWE-863"
    ]
}
References

Affected packages

Git / github.com/go-vikunja/vikunja

Affected ranges

Type
GIT
Repo
https://github.com/go-vikunja/vikunja
Events
Introduced
e5cd4897d6be52c5bacb39a4ddae322921bfc0ee
Fixed
d911caaa11c748c3abc6b98b3189afea2677bcb0
Fixed
907850feae3866ae9b16ea1c7b84a4d77273415a
Database specific
Show details 
{
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ],
    "extracted_events": [
        {
            "introduced": "0.21.0"
        },
        {
            "fixed": "2.4.0"
        }
    ]
}

Affected versions

v0.*
v0.21.0
v0.22.0
v0.22.1
v0.23.0
v0.24.1
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
v2.3.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-54766.json"