go-vikunja Vikunja up to 2.3.x Kanban pkg/models/kanban.go Bucket.Update project_view_id permission

CVSS Meta Temp Score
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CTI Interest Score
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4.5$0-$5k0.78

Summaryinfo

A vulnerability categorized as problematic has been discovered in go-vikunja Vikunja up to 2.3.x. Impacted is the function Bucket.Update of the file pkg/models/kanban.go of the component Kanban. The manipulation of the argument project_view_id results in permission. This vulnerability is reported as CVE-2026-55067. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability was found in go-vikunja Vikunja up to 2.3.x. It has been classified as problematic. Affected is the function Bucket.Update of the file pkg/models/kanban.go of the component Kanban. The manipulation of the argument project_view_id with an unknown input leads to a permission vulnerability. CWE is classifying the issue as CWE-275. This is going to have an impact on integrity. CVE summarizes:

Vikunja is an open-source self-hosted task management platform. Prior to 2.4.0, POST /api/v1/projects/{project}/views/{view}/buckets/{bucket} allows the request body project_view_id value to be mass assigned by Bucket.Update in pkg/models/kanban.go. The permission check validates that the bucket currently belongs to the URL project and view but does not validate the body selected destination view, allowing any authenticated user to relocate an attacker-owned bucket into another tenant’s Kanban view. The injected bucket retains attacker-controlled content and ownership, enabling cross-tenant defacement. This issue is fixed in version 2.4.0.

The advisory is shared for download at github.com. This vulnerability is traded as CVE-2026-55067 since 06/16/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1222.

Upgrading to version 2.4.0 eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.6
VulDB Meta Temp Score: 4.5

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 5.0
CNA Vector (GitHub_M): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Permission
CWE: CWE-275 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Vikunja 2.4.0

Timelineinfo

06/16/2026 CVE reserved
08/28/2026 +73 days Advisory disclosed
08/28/2026 +0 days VulDB entry created
08/28/2026 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Confirmed

CVE: CVE-2026-55067 (🔒)
GCVE (CVE): GCVE-0-2026-55067
GCVE (VulDB): GCVE-100-396852

Entryinfo

Created: 08/28/2026 22:33
Changes: 08/28/2026 22:33 (67)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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