CVE-2026-1518
Keycloak: blind server-side request forgery (ssrf) via ciba backchannel notification endpoint in keycloak
CVSS Score
2.7
EPSS Score
0.0%
EPSS Percentile
0th
A flaw was found in Keycloak’s CIBA feature where insufficient validation of client-configured backchannel notification endpoints could allow blind server-side requests to internal services.
| CWE | CWE-918 |
| Vendor | red hat |
| Product | red hat build of keycloak |
| Published | Feb 2, 2026 |
| Last Updated | Feb 2, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None
Affected Versions
Red Hat / Red Hat Build of Keycloak
All versions affected Red Hat / Red Hat Build of Keycloak
All versions affected Red Hat / Red Hat Build of Keycloak
All versions affected References
Credits
Red Hat would like to thank Patrick Smith for reporting this issue.