CVE-2026-118425 Keycloak-services: keycloak-services: redirect uri domain allowlist bypass via dns resolution to loopback
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-118425?
CVE-2026-118425 is a medium-severity vulnerability in Red Hat Build of Keycloak, published on 29 Oct 2026.
Official description
A flaw was found in the secure-redirect-uris-enforcer client policy of Keycloak, an identity and access management solution. The issue occurs when the policy is configured to allow loopback addresses, as Keycloak resolves hostnames via DNS during validation. An attacker can bypass domain allowlist restrictions by using a hostname that resolves to a loopback address, potentially allowing the registration of unauthorized redirect URIs.
Weakness: CWE-601
Which versions are affected by CVE-2026-118425?
How do I fix CVE-2026-118425?
No fix has been published for CVE-2026-118425 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-118425 being exploited?
There is no known exploitation of CVE-2026-118425 in the wild and no public exploit code.
Sources
Also known as GHSA-3m3f-g7xq-c3v7.