CVE-2025-7777 Mirror-registry: host header injection in mirror-registry
Attackers can inject host headers to redirect users to malicious domains, enabling phishing campaigns against OpenShift mirror registry users.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-7777?
CVE-2025-7777 is a medium-severity vulnerability in mirror registry for Red Hat OpenShift, published on 20 Aug 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The mirror-registry doesn't properly sanitize the host header HTTP header in HTTP request received, allowing an attacker to perform malicious redirects to attacker-controlled domains or phishing campaigns.
Weakness: CWE-601
Which versions are affected by CVE-2025-7777?
How do I fix CVE-2025-7777?
No fix has been published for CVE-2025-7777 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-7777 being exploited?
There is no known exploitation of CVE-2025-7777 in the wild and no public exploit code.
Sources
Also known as GHSA-rg5f-xqfx-h2h3.