CVE-2026-83589: URL Redirection to Untrusted Site ('Open Redirect') in Red Hat Red Hat OpenShift Container Platform 4
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.
AI Analysis
Technical Summary
This vulnerability in Red Hat OpenShift Container Platform 4's oauth-proxy allows an attacker to exploit improper validation of the post-login redirect parameter (`rd`). When a user follows a specially crafted link, they may be redirected to an untrusted external site after authentication. This open redirect can be abused to conduct phishing attacks or steal credentials by misleading users about the destination site.
Potential Impact
Successful exploitation results in users being redirected to arbitrary external websites after login, which can be used to facilitate phishing attacks or credential theft. The vulnerability does not directly compromise system confidentiality, integrity, or availability but poses a risk to user trust and security.
Mitigation Recommendations
No explicit patch or remediation status is provided in the vendor advisory. Patch status is not yet confirmed — check the Red Hat advisory at https://access.redhat.com/security/cve/CVE-2026-83589 for current remediation guidance. Until a fix is applied, users should be cautious about following unexpected links that involve authentication redirects.
CVE-2026-83589: URL Redirection to Untrusted Site ('Open Redirect') in Red Hat Red Hat OpenShift Container Platform 4
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.
CVSS v3.1
Score 6.1medium
Affected software
Red Hat
Red Hat OpenShift Container Platform 4
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Red Hat OpenShift Container Platform 4's oauth-proxy allows an attacker to exploit improper validation of the post-login redirect parameter (`rd`). When a user follows a specially crafted link, they may be redirected to an untrusted external site after authentication. This open redirect can be abused to conduct phishing attacks or steal credentials by misleading users about the destination site.
Potential Impact
Successful exploitation results in users being redirected to arbitrary external websites after login, which can be used to facilitate phishing attacks or credential theft. The vulnerability does not directly compromise system confidentiality, integrity, or availability but poses a risk to user trust and security.
Mitigation Recommendations
No explicit patch or remediation status is provided in the vendor advisory. Patch status is not yet confirmed — check the Red Hat advisory at https://access.redhat.com/security/cve/CVE-2026-83589 for current remediation guidance. Until a fix is applied, users should be cautious about following unexpected links that involve authentication redirects.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- redhat
- Date Reserved
- 2026-08-31T19:18:43.003Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://access.redhat.com/security/cve/CVE-2026-83589","vendor":"Red Hat"}]
Threat ID: 6abe7499a43b0b3b89bd1d3c
Added to database: 10/01/2026, 14:56:25 UTC
Last enriched: 10/01/2026, 15:25:59 UTC
Last updated: 10/02/2026, 01:59:07 UTC
Views: 8
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.