Is CVE-2026-83589 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-83589?

CVE-2026-83589 has a CVSS v3 severity of MEDIUM (6.1).

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CVE-2026-83589

Description

A flaw was found in oauth-proxy. The application fails to properly validate the destination redirect parameter (`rd`) during post-login redirection. A remote attacker can exploit this vulnerability by enticing a user to follow a specially crafted link, resulting in the user being redirected to an arbitrary external website after authenticating. This open redirect can be leveraged to conduct phishing attacks or credential theft.