CVE-2026-123497 Vikunja veans before 2.7.1 HTTPS to HTTP Downgrade in Server Discovery

Vikunja veans before 2.7.1 contains a protocol downgrade vulnerability in serverCandidates that allows on-path attackers to force plain HTTP during veans init and login. Attackers can block HTTPS ports so discovery accepts an unverified HTTP response, capturing passwords, TOTP codes or bot tokens...

CVE-2026-123497: go-vikunja vikunja: Vikunja veans before 2.7.1 contains a protocol downgrade vulnerability in serverCandidates that allows on-path…

Vikunja veans before 2.7.1 contains a protocol downgrade vulnerability in serverCandidates that allows on-path attackers to force plain HTTP during veans init and login. Attackers can block HTTPS ports so discovery accepts an unverified HTTP response, capturing passwords, TOTP codes or bot tokens...