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.
CVE-2026-35596
This medium-severity CVE scores 4.3 under NVD CVSS v3. EPSS exploit probability: 0.0%, top 90% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- Lower severity and no public exploit yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 4.3
- EG Score
- 4.3(medium)
- EPSS
- 19.3%
- KEV
- Not listed
Published
April 10, 2026
Last Modified
April 17, 2026
References (4)
- security-advisories@githubhttps://github.com/go-vikunja/vikunja/commit/fc216c38afaa51dd56dde7a97343d2148ecf24c1
- security-advisories@githubhttps://github.com/go-vikunja/vikunja/pull/2578
- security-advisories@githubhttps://github.com/go-vikunja/vikunja/releases/tag/v2.3.0
- security-advisories@githubhttps://github.com/go-vikunja/vikunja/security/advisories/GHSA-hj5c-mhh2-g7jq
Vendor Advisories for CVE-2026-35596(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Affected Packages
(1 across 1 ecosystem)
Go(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| code.vikunja.io/api | — | 2.3.0 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 8× in last 7d / 38× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-22 14:08 UTCEPSS rescore
- 2026-07-21 15:24 UTCEPSS rescore
- 2026-07-20 19:32 UTCOSV refresh
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- 2026-07-01 15:06 UTCEPSS rescore
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- 2026-05-29 13:44 UTCEPSS rescore
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- 2026-05-20 17:52 UTCEG score recompute
- 2026-05-20 11:22 UTCEPSS rescore
- 2026-05-20 11:22 UTCEPSS rescore
Related CVEs(same CWE)
Same CWE
10 shownCWE-863
Frequently asked(5)
What is CVE-2026-35596?
When was CVE-2026-35596 disclosed?
Is CVE-2026-35596 actively exploited?
What is the CVSS score of CVE-2026-35596?
How do I remediate CVE-2026-35596?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-35596
Is Your Infrastructure Affected by CVE-2026-35596?
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