Vikunja has Broken Access Control on Label Read via SQL Operator Precedence Bug
Published Apr 10, 2026
4.3
MEDIUMCVSS 3.1
EPSS 0.35%
Description
Vikunja is an open-source self-hosted task management platform. Prior to 2.3.0, the hasAccessToLabel function contains a SQL operator precedence bug that allows any authenticated user to read any label that has at least one task association, regardless of project access. Label titles, descriptions, colors, and creator information are exposed. This vulnerability is fixed in 2.3.0.
Affected products
-
- Version < 2.3.0StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| GO-Vikunja | Vikunja | n/a |
|
No data.
No Red Hat product state for this CVE.
code.vikunja.io/api
Go
Introduced 0 Fixed not fixed
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| Go | code.vikunja.io/api | 0 | not fixed |
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
PoCAutomatable
NoTechnical Impact
PartialDecision
n/aAssessed Apr 14, 2026 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
Score over time
Apr–Oct 2026- EPSS v4
- EPSS v5
Percentile over time
- EPSS v4
- EPSS v5
Table of values (3 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 0.35% (0.00348) | 26.05th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.27% (0.00272) | 18.69th | v5 (v2026.06.15) |
| Apr 11, 2026 | 0.03% (0.00026) | 7.45th | v4 (v2025.03.14) |
References (5)
- https://github.com/advisories/GHSA-hj5c-mhh2-g7jq Advisory
- https://github.com/go-vikunja/vikunja/commit/fc216c38afaa51dd56dde7a97343d2148ecf24c1 x_refsource_MISCPatch
- https://github.com/go-vikunja/vikunja/pull/2578 x_refsource_MISCIssue Tracking
- https://github.com/go-vikunja/vikunja/releases/tag/v2.3.0 x_refsource_MISCRelease Notes
- https://github.com/go-vikunja/vikunja/security/advisories/GHSA-hj5c-mhh2-g7jq x_refsource_CONFIRMExploitVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://github.com/advisories/GHSA-hj5c-mhh2-g7jq | Advisory | |
| https://github.com/go-vikunja/vikunja/commit/fc216c38afaa51dd56dde7a97343d2148ecf24c1 | x_refsource_MISCPatch | |
| https://github.com/go-vikunja/vikunja/pull/2578 | x_refsource_MISCIssue Tracking | |
| https://github.com/go-vikunja/vikunja/releases/tag/v2.3.0 | x_refsource_MISCRelease Notes | |
| https://github.com/go-vikunja/vikunja/security/advisories/GHSA-hj5c-mhh2-g7jq | x_refsource_CONFIRMExploitVendor Advisory |
Change history (0)
No recorded changes yet.