---
id: CVE-2026-2092
title: A flaw was found in Keycloak
summary: >-
  A flaw was found in Keycloak. Keycloak's Security Assertion Markup Language
  (SAML) broker endpoint does not properly validate encrypted assertions when
  the overall SAML response is not signed. An attacker with a valid signed SAML
  asserti…
severity: high
cvss: 7.7
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:L'
cwe:
  - CWE-1287
vendor: redhat
product: build_of_keycloak
affected:
  - 'build_of_keycloak >= 26.2, < 26.2.14'
  - 'build_of_keycloak >= 26.4, < 26.4.10'
patched:
  - build_of_keycloak 26.4.10
published: '2026-03-18'
updated: '2026-10-06'
sourceUpdated: '2026-10-06T17:17:25.807'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-2092'
references:
  - url: 'https://access.redhat.com/errata/RHSA-2026:3925'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:3926'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:3947'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:3948'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:76128'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:76129'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:76130'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:76132'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:76134'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/security/cve/CVE-2026-2092'
    label: secalert@redhat.com
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2437296'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:3925'
    label: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
  - url: 'https://access.redhat.com/errata/RHSA-2026:3926'
    label: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
  - url: 'https://access.redhat.com/errata/RHSA-2026:3947'
    label: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
  - url: 'https://access.redhat.com/errata/RHSA-2026:3948'
    label: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
  - url: 'https://access.redhat.com/security/cve/CVE-2026-2092'
    label: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2437296'
    label: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-2092.json
    label: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
  - url: >-
      https://github.com/keycloak/keycloak/security/advisories/GHSA-794g-x443-36f7
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-2092'
  - url: 'https://github.com/keycloak/keycloak/pull/46929'
  - url: >-
      https://github.com/keycloak/keycloak/commit/b40a25908d937bb0563ea516487bc2c7c1d92508
  - url: 'https://github.com/advisories/GHSA-794g-x443-36f7'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-2092'
tags:
  - nvd
  - cve.org
  - ghsa
  - maven
  - csaf
  - vex
  - red-hat
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-03-18T14:10:59.125692Z'
epss: 0.00375
epssPercentile: 0.31244
ecosystem: maven
ingestedAt: '2026-07-02T21:44:45.105Z'
aliases:
  - GHSA-794g-x443-36f7
---

## Overview

A flaw was found in Keycloak. Keycloak's Security Assertion Markup Language (SAML) broker endpoint does not properly validate encrypted assertions when the overall SAML response is not signed. An attacker with a valid signed SAML assertion can exploit this by crafting a malicious SAML response. This allows the attacker to inject an encrypted assertion for an arbitrary principal, leading to unauthorized access and potential information disclosure.

## Affected

- `build_of_keycloak >= 26.2, < 26.2.14`
- `build_of_keycloak >= 26.4, < 26.4.10`

## Remediation

Upgrade past the affected range:

- `build_of_keycloak 26.4.10`

## Package advisory (CVE-2026-2092)

Affected packages:

- `org.keycloak:keycloak-services <= 26.2.5`
- `org.keycloak:keycloak-services >= 26.3.0, <= 26.4.7`
- `org.keycloak:keycloak-services >= 26.5.0, < 26.5.5`

Source: https://github.com/advisories/GHSA-794g-x443-36f7

## Vendor advisories

- **RHSA-2026:76134** · Red Hat · fixed in: Middleware Containers for OpenShift · released 2026-10-05 · [advisory](https://access.redhat.com/errata/RHSA-2026:76134)
- **RHSA-2026:3925** · Red Hat · fixed in: Red Hat build of Keycloak 26.2 · released 2026-03-05 · [advisory](https://access.redhat.com/errata/RHSA-2026:3925)
- **RHSA-2026:3948** · Red Hat · fixed in: Red Hat build of Keycloak 26.4 · released 2026-03-05 · [advisory](https://access.redhat.com/errata/RHSA-2026:3948)
- **RHSA-2026:76132** · Red Hat · fixed in: Red Hat Single Sign-On 7.6.13 · released 2026-10-05 · [advisory](https://access.redhat.com/errata/RHSA-2026:76132)
- **RHSA-2026:3926** · Red Hat · fixed in: Red Hat build of Keycloak 26.2.14 · released 2026-03-05 · [advisory](https://access.redhat.com/errata/RHSA-2026:3926)
- **RHSA-2026:3947** · Red Hat · fixed in: Red Hat build of Keycloak 26.4.10 · released 2026-03-05 · [advisory](https://access.redhat.com/errata/RHSA-2026:3947)