How severe is CVE-2026-35596?

CVE-2026-35596 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2026-35596 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-35596?

CVE-2026-35596 affects Vikunja. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-35596?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-35596 have an EU (EUVD) identifier?

Yes. CVE-2026-35596 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-21420.

When was CVE-2026-35596 published?

CVE-2026-35596 was published on 2026-04-10 and last updated on 2026-06-17.

CVE-2026-35596

CVE-2026-35596 is a medium-severity vulnerability in Vikunja with a CVSS 3.x base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-863.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
EPSS exploit prediction: 0% (19th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-21420
Weakness: CWE-863
Affected product: Vikunja
Published: 2026-04-10
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2026-35596?: 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.
How severe is CVE-2026-35596?: CVE-2026-35596 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2026-35596 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-35596?: CVE-2026-35596 affects Vikunja. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-35596?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-35596 have an EU (EUVD) identifier?: Yes. CVE-2026-35596 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-21420.
When was CVE-2026-35596 published?: CVE-2026-35596 was published on 2026-04-10 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:vikunja:vikunja:*:*:*:*:*:*:*:*

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