CVE-2026-67345MaxKey 4.1.12 DefaultRedirectResolver OAuth Authorization Code Theft

Beschreibung

MaxKey through 4.1.12, fixed in commit ddbb72f, contains an insufficient redirect URI validation vulnerability in DefaultRedirectResolver.hostMatches() that allows remote attackers to hijack OAuth 2.0 authorization codes by supplying a crafted redirect_uri whose hostname suffix matches a registered URI without proper dot-boundary anchoring. Attackers who control a domain ending with the registered redirect URI hostname can social-engineer victims into clicking a crafted authorization URL, causing the authorization code to be issued to the attacker-controlled URI and exchanged for an access token granting access to the victim's identity.

Daten: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Wiedergegeben wie in der Quelle, auf Englisch.

Betroffene Produkte und Versionen

Referenzen und Patches

• Researcher Disclosure technical-descriptionexploitissue-tracking
• Patch Commit patch
• https://www.vulncheck.com/advisories/maxkey-defaultredirectresolver-oauth-authorization-code-theft third-party-advisory