EUVD-2026-16142

| CVE-2026-4874 LOW
2026-03-26 redhat
3.1
CVSS 3.1

CVSS Vector

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

Lifecycle Timeline

3
Analysis Generated
Mar 26, 2026 - 07:45 vuln.today
EUVD ID Assigned
Mar 26, 2026 - 07:45 euvd
EUVD-2026-16142
CVE Published
Mar 26, 2026 - 07:12 nvd
LOW 3.1

Tags

SSRF Information Disclosure

Description

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.

Analysis

A SSRF vulnerability in A flaw (CVSS 3.1) that allows the attacker. Remediation should follow standard vulnerability management procedures.

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Remediation

During next maintenance window: Apply vendor patches when convenient. Monitor vendor channels for updates.

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Priority Score

16
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +16
POC: 0

Vendor Status

Debian

Bug #1088287
keycloak
Release Status Fixed Version Urgency
open - -

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EUVD-2026-16142 vulnerability details – vuln.today
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