SCA: security update for org.keycloak:keycloak-server-spi-private, org.keycloak:keycloak-services (GHSA-x4p7-7chp-64hq)

high Tenable Cloud Security Plugin ID 442360

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 could bypass security controls by sending a valid SAML
response from an external Identity Provider (IdP) to the Keycloak SAML endpoint for IdP-initiated broker
logins. This allows the attacker to complete broker logins even when the SAML Identity Provider is
disabled, leading to unauthorized authentication. (CVE-2026-2603)

Solution

Update the org.keycloak:keycloak-server-spi-private library and its related packages to version 26.5.5 or later.

See Also

https://github.com/advisories/GHSA-x4p7-7chp-64hq

Plugin Details

Severity: High

ID: 442360

Version: Revision 1.4

Type: Local

Family: SCA Checks

Published: 5/26/2026

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.59

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: High

Base Score: 8.5

Temporal Score: 6.3

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

CVSS Score Source: CVE-2026-2603

CVSS v3

Risk Factor: High

Base Score: 8.1

Temporal Score: 7.1

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:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 3/18/2026

Vulnerability Publication Date: 3/12/2026

Reference Information

CVE: CVE-2026-2603

cwe: CWE-306