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Vulnerability Details :

CVE-2026-33676

Summary
Assigner-GitHub_M
Assigner Org ID-a0819718-46f1-4df5-94e2-005712e83aaa
Published At-24 Mar, 2026 | 15:35
Updated At-24 Mar, 2026 | 18:55
Rejected At-
Credits

Vikunja has Cross-Project Information Disclosure via Task Relations — Missing Authorization Check on Related Task Read

Vikunja is an open-source self-hosted task management platform. Prior to version 2.2.1, when the Vikunja API returns tasks, it populates the `related_tasks` field with full task objects for all related tasks without checking whether the requesting user has read permission on those tasks' projects. An authenticated user who can read a task that has cross-project relations will receive full details (title, description, due dates, priority, percent completion, project ID, etc.) of tasks in projects they have no access to. Version 2.2.1 patches the issue.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:GitHub_M
Assigner Org ID:a0819718-46f1-4df5-94e2-005712e83aaa
Published At:24 Mar, 2026 | 15:35
Updated At:24 Mar, 2026 | 18:55
Rejected At:
▼CVE Numbering Authority (CNA)
Vikunja has Cross-Project Information Disclosure via Task Relations — Missing Authorization Check on Related Task Read

Vikunja is an open-source self-hosted task management platform. Prior to version 2.2.1, when the Vikunja API returns tasks, it populates the `related_tasks` field with full task objects for all related tasks without checking whether the requesting user has read permission on those tasks' projects. An authenticated user who can read a task that has cross-project relations will receive full details (title, description, due dates, priority, percent completion, project ID, etc.) of tasks in projects they have no access to. Version 2.2.1 patches the issue.

Affected Products
Vendor
go-vikunja
Product
vikunja
Versions
Affected
  • < 2.2.1
Problem Types
TypeCWE IDDescription
CWECWE-863CWE-863: Incorrect Authorization
Type: CWE
CWE ID: CWE-863
Description: CWE-863: Incorrect Authorization
Metrics
VersionBase scoreBase severityVector
3.16.5MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Version: 3.1
Base score: 6.5
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
https://github.com/go-vikunja/vikunja/security/advisories/GHSA-8cmm-j6c4-rr8v
x_refsource_CONFIRM
https://github.com/go-vikunja/vikunja/pull/2449
x_refsource_MISC
https://github.com/go-vikunja/vikunja/commit/833f2aec006ac0f6643c41872e45dd79220b9174
x_refsource_MISC
https://vikunja.io/changelog/vikunja-v2.2.2-was-released
x_refsource_MISC
Hyperlink: https://github.com/go-vikunja/vikunja/security/advisories/GHSA-8cmm-j6c4-rr8v
Resource:
x_refsource_CONFIRM
Hyperlink: https://github.com/go-vikunja/vikunja/pull/2449
Resource:
x_refsource_MISC
Hyperlink: https://github.com/go-vikunja/vikunja/commit/833f2aec006ac0f6643c41872e45dd79220b9174
Resource:
x_refsource_MISC
Hyperlink: https://vikunja.io/changelog/vikunja-v2.2.2-was-released
Resource:
x_refsource_MISC
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
https://github.com/go-vikunja/vikunja/security/advisories/GHSA-8cmm-j6c4-rr8v
exploit
Hyperlink: https://github.com/go-vikunja/vikunja/security/advisories/GHSA-8cmm-j6c4-rr8v
Resource:
exploit
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:security-advisories@github.com
Published At:24 Mar, 2026 | 16:16
Updated At:27 Mar, 2026 | 16:12

Vikunja is an open-source self-hosted task management platform. Prior to version 2.2.1, when the Vikunja API returns tasks, it populates the `related_tasks` field with full task objects for all related tasks without checking whether the requesting user has read permission on those tasks' projects. An authenticated user who can read a task that has cross-project relations will receive full details (title, description, due dates, priority, percent completion, project ID, etc.) of tasks in projects they have no access to. Version 2.2.1 patches the issue.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary3.16.5MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Type: Secondary
Version: 3.1
Base score: 6.5
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CPE Matches

vikunja
vikunja
>>vikunja>>Versions before 2.2.1(exclusive)
cpe:2.3:a:vikunja:vikunja:*:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-863Secondarysecurity-advisories@github.com
CWE ID: CWE-863
Type: Secondary
Source: security-advisories@github.com
Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References
HyperlinkSourceResource
https://github.com/go-vikunja/vikunja/commit/833f2aec006ac0f6643c41872e45dd79220b9174security-advisories@github.com
Patch
https://github.com/go-vikunja/vikunja/pull/2449security-advisories@github.com
Issue Tracking
https://github.com/go-vikunja/vikunja/security/advisories/GHSA-8cmm-j6c4-rr8vsecurity-advisories@github.com
Exploit
Vendor Advisory
https://vikunja.io/changelog/vikunja-v2.2.2-was-releasedsecurity-advisories@github.com
Release Notes
https://github.com/go-vikunja/vikunja/security/advisories/GHSA-8cmm-j6c4-rr8v134c704f-9b21-4f2e-91b3-4a467353bcc0
Exploit
Vendor Advisory
Hyperlink: https://github.com/go-vikunja/vikunja/commit/833f2aec006ac0f6643c41872e45dd79220b9174
Source: security-advisories@github.com
Resource:
Patch
Hyperlink: https://github.com/go-vikunja/vikunja/pull/2449
Source: security-advisories@github.com
Resource:
Issue Tracking
Hyperlink: https://github.com/go-vikunja/vikunja/security/advisories/GHSA-8cmm-j6c4-rr8v
Source: security-advisories@github.com
Resource:
Exploit
Vendor Advisory
Hyperlink: https://vikunja.io/changelog/vikunja-v2.2.2-was-released
Source: security-advisories@github.com
Resource:
Release Notes
Hyperlink: https://github.com/go-vikunja/vikunja/security/advisories/GHSA-8cmm-j6c4-rr8v
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
Resource:
Exploit
Vendor Advisory

Change History

0
Information is not available yet

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