CVE-2026-83589 — Oauth-proxy: open redirect via /\ and /\t bypass in post-login redirect
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 exploi…
Published: 2026-10-01 · CVSS: 6.1 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7