Medium severity5.8NVD Advisory· Published Jan 20, 2026· Updated Apr 15, 2026
CVE-2026-1180
CVE-2026-1180
Description
A flaw was identified in Keycloak’s OpenID Connect Dynamic Client Registration feature when clients authenticate using private_key_jwt. The issue allows a client to specify an arbitrary jwks_uri, which Keycloak then retrieves without validating the destination. This enables attackers to coerce the Keycloak server into making HTTP requests to internal or restricted network resources. As a result, attackers can probe internal services and cloud metadata endpoints, creating an information disclosure and reconnaissance risk.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
org.keycloak:keycloak-adapter-coreMaven | <= 25.0.3 | — |
Affected products
1Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
7- github.com/advisories/GHSA-7vw6-5q2f-7w5rghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-1180ghsaADVISORY
- access.redhat.com/errata/RHSA-2026:6477nvdWEB
- access.redhat.com/errata/RHSA-2026:6478nvdWEB
- access.redhat.com/security/cve/CVE-2026-1180nvdWEB
- bugzilla.redhat.com/show_bug.cginvdWEB
- github.com/keycloak/keycloak/issues/45645ghsaWEB
News mentions
0No linked articles in our index yet.