CVE-2026-123497
Last modified
CVE-2026-123497 is a medium-severity vulnerability rated 6.8/10 on the CVSS scale. 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 and persisting cleartext API traffic..
Description
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 and persisting cleartext API traffic.
Metrics
Weakness Enumeration
References
Timeline
- Published
- Last Modified
- Status
- Deferred
Frequently Asked Questions
What is CVE-2026-123497?
How severe is CVE-2026-123497?
How do I fix CVE-2026-123497?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-123491Craft CMS 4.0.0 before 4.18.9 and 5.0.0 before 5.11.2 contai…8.2
- CVE-2026-123492SiYuan before 3.8.9 contains a nil pointer dereference vulne…4.9
- CVE-2026-123493Vikunja from 2.4.0 before 2.7.1 contains an authentication b…5.4
- CVE-2026-123494Vikunja before 2.7.1 contains a cross-site request forgery v…3.5
- CVE-2026-123495Vikunja 2.0.0 before 2.7.1 accepts form-encoded bodies on th…4.6
- CVE-2026-123496Vikunja veans before 2.7.1 contains a symlink following vuln…3.3
- CVE-2026-123498Vikunja veans before 2.7.1 contains a prompt injection vulne…3.7
- CVE-2026-123499Vikunja veans before 2.7.1 contains a credential exposure vu…5.9
- CVE-2026-1235The WP eCommerce WordPress plugin through 3.15.1 unserialize…6.5
- CVE-2026-12350IBM MQ could allow an authenticated attacker to cause a deni…6.5
- CVE-2026-123500Vikunja before 2.7.1 contains an insecure file permissions v…6.2
- CVE-2026-123501Vikunja before 2.7.1 contains an uncontrolled resource consu…6.5
Are you affected by CVE-2026-123497?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST
