How severe is CVE-2026-33313?

CVE-2026-33313 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-2026-33313 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-33313?

CVE-2026-33313 affects Vikunja. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-33313?

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

Does CVE-2026-33313 have an EU (EUVD) identifier?

Yes. CVE-2026-33313 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-20089.

When was CVE-2026-33313 published?

CVE-2026-33313 was published on 2026-03-24 and last updated on 2026-06-17.

CVE-2026-33313

CVE-2026-33313 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-639.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
CVSS v4: 5.3
EPSS exploit prediction: 0% (17th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-20089
Weakness: CWE-639
Affected product: Vikunja
Published: 2026-03-24
Last modified: 2026-06-17

Description

Vikunja is an open-source self-hosted task management platform. Prior to version 2.2.0, an authenticated user can read any task comment by ID, regardless of whether they have access to the task the comment belongs to, by substituting the task ID in the API URL with a task they do have access to. Version 2.2.0 fixes the issue.

Frequently asked questions

What is CVE-2026-33313?: Vikunja is an open-source self-hosted task management platform. Prior to version 2.2.0, an authenticated user can read any task comment by ID, regardless of whether they have access to the task the comment belongs to, by substituting the task ID in the API URL with a task they do have access to. Version 2.2.0 fixes the issue.
How severe is CVE-2026-33313?: CVE-2026-33313 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-2026-33313 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-33313?: CVE-2026-33313 affects Vikunja. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-33313?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-33313 have an EU (EUVD) identifier?: Yes. CVE-2026-33313 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-20089.
When was CVE-2026-33313 published?: CVE-2026-33313 was published on 2026-03-24 and last updated on 2026-06-17.

References

Affected products (1)

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

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