Detections
Analytics

SCA: security update for org.keycloak:keycloak-services (GHSA-f2hx-5fx3-hmcv)

high Tenable Cloud Security Plugin ID 439853

Description

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

 - A flaw was found in Keycloak. An authenticated user with the uma_protection role can bypass User-Managed
 Access (UMA) policy validation. This allows the attacker to include resource identifiers owned by other
 users in a policy creation request, even if the URL path specifies an attacker-owned resource.
 Consequently, the attacker gains unauthorized permissions to victim-owned resources, enabling them to
 obtain a Requesting Party Token (RPT) and access sensitive information or perform unauthorized actions.
 (CVE-2026-4636)

Solution

Update the org.keycloak:keycloak-services library and its related packages to version 26.5.7 or later.

See Also

https://github.com/advisories/GHSA-f2hx-5fx3-hmcv

Plugin Details

Severity: High

ID: 439853

Version: Revision 1.5

Type: Local

Family: SCA Checks

Published: 4/4/2026

Updated: 7/2/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Medium

Score: 6.3

Percentile: 96.81

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-2026-4636

CVSS v3

Risk Factor: High

Base Score: 8.1

Temporal Score: 7.3

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/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: 4/2/2026

Vulnerability Publication Date: 4/2/2026

Reference Information

CVE: CVE-2026-4636

cwe: CWE-551