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GO-2026-4855 Vikunja: Unauthenticated Instance-Wide Data Breach via Link Share Hash Disclosure Chained with Cross-Project Attachment IDOR in code.vikunja.io/api

🗓️ 26 Mar 2026 20:33:09Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 5 Views

Unauthenticated breach via link hash disclosure chained with cross project attachment vulnerability in Vikunja API.

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11 Jul 2026 04:11Current
5.9Medium risk
Vulners AI Score5.9
CVSS 49.3
CVSS 3.19.8
EPSS0.00358
SSVC
5