Information disclosure in Go-Vikunja Vikunja
CVE-2026-123502
Vikunja before 2.7.1 contains an information exposure vulnerability that allows log readers to obtain link-share hashes because the request logger records the raw URI of the /shares/:share/auth route. Attackers with access to Vikunja or reverse proxy access logs can reuse non-expiring, non-password-protected share hashes to obtain a project JWT with read, write or admin permission.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.2 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:L/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- GitHub Security Advisory (GHSA-ff52-3296-2fvr) (vendor-advisory)
- VulnCheck Advisory: Vikunja before 2.7.1 Link-Share Hash Exposure via Request Path Logging (third-party-advisory)
Frequently asked questions
- What is CVE-2026-123502?
- CVE-2026-123502 is a medium-severity vulnerability in Go-Vikunja Vikunja, classified under Insertion of Sensitive Information into Log File. CVSS score: 5.2/10. Published 2026-11-08.
- How severe is CVE-2026-123502?
- Medium severity. CVSS v3 base score is 5.2 out of 10.