CVE-2026-83589
A flaw was found in oauth-proxy
- Risk score
- 40/100
- CVSS
- 6.1 v3.1
- Exploit chance (30 days)
- 0.3%
- Published
- 1 Oct 2026
Open in the live forecast Today's forecast
What to know
- What it is
- 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 webs…
- Affected
- See advisory
- Fix
- Apply the vendor's security update; see the linked advisory.
- Exploitation
- No known exploitation
Why it is Yellow
- CVSS 6.1 medium
References
- https://access.redhat.com/errata/RHSA-2026:74380
- https://access.redhat.com/errata/RHSA-2026:74383
- https://access.redhat.com/errata/RHSA-2026:74429
- https://access.redhat.com/errata/RHSA-2026:79039
- https://access.redhat.com/errata/RHSA-2026:79169
- https://access.redhat.com/errata/RHSA-2026:82785
- https://access.redhat.com/errata/RHSA-2026:82813
- https://access.redhat.com/security/cve/CVE-2026-83589
- https://bugzilla.redhat.com/show_bug.cgi?id=2518379
Original 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.
Last activity 1 Oct 2026. Patch Forecast updates every hour.