Detections
Analytics

Echo: org.keycloak:keycloak-services: security update to 26.4.13

low Tenable Cloud Security Plugin ID 459335

Description

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

 - A flaw was found in Keycloak. An authenticated attacker can perform Server-Side Request Forgery (SSRF) by
 manipulating the `client_session_host` parameter during refresh token requests. This occurs when a
 Keycloak client is configured to use the `backchannel.logout.url` with the `application.session.host`
 placeholder. Successful exploitation allows the attacker to make HTTP requests from the Keycloak server’s
 network context, potentially probing internal networks or internal APIs, leading to information
 disclosure. (CVE-2026-4874)

Solution

Update the org.keycloak:keycloak-services library and its related packages to version 26.4.13 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-4874

Plugin Details

Severity: Low

ID: 459335

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/5/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 1.2

Percentile: 0.01

CVSS v2

Risk Factor: Low

Base Score: 2.1

Temporal Score: 1.6

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

CVSS Score Source: CVE-2026-4874

CVSS v3

Risk Factor: Low

Base Score: 3.1

Temporal Score: 2.7

Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/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: 9/28/2026

Vulnerability Publication Date: 3/26/2026

Reference Information

CVE: CVE-2026-4874