CVE-2026-1518

LOW

Keycloak - Server-Side Request Forgery via CIBA Backchannel Notification Endpoint

Title source: llm

Description

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.

References (2)

Core 2

Core References

Vendor Advisory vdb-entry x_refsource_redhat

https://access.redhat.com/security/cve/CVE-2026-1518

Issue Tracking issue-tracking x_refsource_redhat

https://bugzilla.redhat.com/show_bug.cgi?id=2433727

Scores

CVSS v3 2.7

EPSS 0.0001

EPSS Percentile 1.7%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-918

Status published

Products (2)

org.keycloak/keycloak-parent 0Maven

Red Hat/Red Hat Build of Keycloak

Published Feb 02, 2026

Tracked Since Feb 18, 2026