SCA: security update for org.keycloak:keycloak-services (GHSA-v3f7-2p4r-mwfw)

high Tenable Cloud Security Plugin ID 477916

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

- A flaw was found in Keycloak. A remote attacker with administrative privileges, specifically those with
`manage-client` permission or access to client registration endpoints, could bypass client Uniform
Resource Identifier (URI) validation. This is achieved by registering a malicious client with a specially
crafted redirect URI using a case-insensitive `javascript:` or `data:` scheme. This Cross-Site Scripting
(XSS) vulnerability allows for arbitrary code execution in the Keycloak origin when a victim clicks the
crafted link, such as in the logout flow or the Admin Console. (CVE-2026-9086)

Solution

Update the org.keycloak:keycloak-services library and its related packages to version 26.6.4 or later.

See Also

https://github.com/advisories/GHSA-v3f7-2p4r-mwfw

Plugin Details

Severity: High

ID: 477916

Version: Revision 1.1

Type: Local

Family: SCA Checks

Published: 10/29/2026

Updated: 10/29/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.6

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: High

Base Score: 8.5

Temporal Score: 6.7

Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:N

CVSS Score Source: CVE-2026-9086

CVSS v3

Risk Factor: High

Base Score: 7.3

Temporal Score: 6.6

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 10/29/2026

Vulnerability Publication Date: 6/25/2026

Reference Information

CVE: CVE-2026-9086

cwe: CWE-79