All vulnerabilities
CVE-2026-83589

Oauth-proxy: open redirect via /\ and /\t bypass in post-login redirect

Red Hat Red Hat OpenShift Container Platform 4.14Operating systems
Open in ThreatlineRecord JSON
CVSS
6.1Medium
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.28%Chance of exploitation activity in the next 30 days, higher than 19% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
Published1 Oct 2026Updated 23 Oct 2026CVE List

What fixes it

No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.

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.

Text from CVE List

Affected versions 7

  • Red Hat OpenShift Container Platform 4.14unaffected: 1791837363 and laterCVE List
  • Red Hat OpenShift Container Platform 4.15unaffected: 1791632336 and laterCVE List
  • Red Hat OpenShift Container Platform 4.18unaffected: 1790882320 and laterCVE List
  • Red Hat OpenShift Container Platform 4.19unaffected: 1790807096 and laterCVE List
  • Red Hat OpenShift Container Platform 4.20unaffected: 1790704224 and laterCVE List
  • Red Hat OpenShift Container Platform 4.21unaffected: 1790706478 and laterCVE List
  • Red Hat OpenShift Container Platform 4.22unaffected: 1790724885 and laterCVE List

References 9