CVE-2025-12789 Rhsso: open redirect
An attacker can redirect users to malicious sites during logout due to improper validation of the redirect_uri parameter in Red Hat Single Sign-On.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2025-12789?
CVE-2025-12789 is a medium-severity vulnerability in Red Hat Single Sign-On 7, published on 6 Nov 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
A flaw was found in Red Hat Single Sign-On. This issue is an Open Redirect vulnerability that occurs during the logout process. The redirect_uri parameter associated with the openid-connect logout protocol does not properly validate the provided URL.
Weakness: CWE-601
Which versions are affected by CVE-2025-12789?
How do I fix CVE-2025-12789?
No fix has been published for CVE-2025-12789 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-12789 being exploited?
There is no known exploitation of CVE-2025-12789 in the wild and no public exploit code.
Sources
Also known as GHSA-phcq-jxj6-jpjq.