SCA: security update for org.keycloak:keycloak-services (GHSA-4x37-hw65-52w8)

medium Tenable Cloud Security Plugin ID 442648

Description

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

- A flaw was found in Keycloak. This access control vulnerability in Keycloak's OpenID Connect (OIDC) token
introspection endpoint allows a confidential client to bypass audience restrictions. An attacker-
controlled client with valid credentials can retrieve sensitive token claims intended for other resource
servers, compromising the confidentiality of lightweight access tokens. This issue can be exploited
remotely by any confidential client in the realm with valid credentials. (CVE-2026-37979)

Solution

Update the org.keycloak:keycloak-services library and its related packages to version 26.6.2 or later.

See Also

https://github.com/advisories/GHSA-4x37-hw65-52w8

Plugin Details

Severity: Medium

ID: 442648

Version: Revision 1.2

Type: Local

Family: SCA Checks

Published: 6/4/2026

Updated: 6/24/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.69

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2026-37979

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

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

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 5/19/2026

Vulnerability Publication Date: 5/19/2026

Reference Information

CVE: CVE-2026-37979

cwe: CWE-284