CVE-2026-91981
Last modified
CVE-2026-91981 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. Vikunja versions before 2.6.0 fail to properly validate link-share tokens in the v2 API user search endpoints. Attackers with a read-only share link can enumerate project users via the projects endpoint and confirm arbitrary usernames exist via the global search endpoint.. EPSS estimates a 0.24% chance of exploitation in the next 30 days.
Description
Vikunja versions before 2.6.0 fail to properly validate link-share tokens in the v2 API user search endpoints. Attackers with a read-only share link can enumerate project users via the projects endpoint and confirm arbitrary usernames exist via the global search endpoint.
Metrics
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| go-vikunja | vikunja | < 2.6.0 |
References
Timeline
- Published
- Last Modified
- Status
- Deferred
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