CVE-2022-4361: Keycloak, an open-source identity and access management solution, has a cross-site scripting (XSS) vulnerabili

This month

CRITICAL 10.0REMOTEWATCHLISTUPGRADEUPGRADEDOWNGRADE

CVE-2022-4361 is a critical-severity flaw (CVSS 10.0) affecting keycloak, single sign-on, openshift container platform. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Keycloak, an open-source identity and access management solution, has a cross-site scripting (XSS) vulnerability in the SAML or OIDC providers. The vulnerability can allow an attacker to execute malicious scripts by setting the AssertionConsumerServiceURL value or the redirect_uri.

Why this priority

Critical severity
Remotely exploitable, no login, no user action
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	10.0 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.7% (top 47%)
CISA exploited list	No
Weakness	CWE-81, CWE-79
Published	2023-07-07
Last modified	2026-06-17

Publisher (CNA): Red Hat, Inc. · Vendor: redhat

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2023-07-07 20:15 UTCPublished CVE record published
2026-06-17 05:20 UTCUpdated Record last modified

redhat keycloak UPGRADE

Affected: < 21.1.2

Fixed in: 21.1.2

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy keycloak || rpm -q keycloak || keycloak --version

2. UPGRADE to 21.1.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade keycloak

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade keycloak

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

redhat single sign-on UPGRADE

Affected: >= 7.6 and < 7.6.4 · all versions

Fixed in: 7.6.4

Safe to downgrade to: a release before 7.6

1. Check installed version

apt-cache policy single-sign-on || rpm -q single-sign-on || single-sign-on --version

2. UPGRADE to 7.6.4 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade single-sign-on

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade single-sign-on

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 7.6 (Debian / Ubuntu)

apt-cache madison single-sign-on sudo apt install single-sign-on=<VERSION_BEFORE_7.6> sudo apt-mark hold single-sign-on

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list single-sign-on sudo dnf downgrade single-sign-on-<VERSION_BEFORE_7.6> sudo dnf versionlock add single-sign-on

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

redhat openshift container platform DOWNGRADE

Affected: 4.11 · 4.12

Fixed in: no fixed release known

Safe to downgrade to: a release before 4.11

1. Check installed version

apt-cache policy openshift-container-platform || rpm -q openshift-container-platform || openshift-container-platform --version

2. No fixed release: DOWNGRADE to a release before 4.11 (Debian / Ubuntu)

apt-cache madison openshift-container-platform sudo apt install openshift-container-platform=<VERSION_BEFORE_4.11> sudo apt-mark hold openshift-container-platform

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list openshift-container-platform sudo dnf downgrade openshift-container-platform-<VERSION_BEFORE_4.11> sudo dnf versionlock add openshift-container-platform

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

redhat openshift container platform for ibm linuxone DOWNGRADE

Affected: 4.9 · 4.10

Fixed in: no fixed release known

Safe to downgrade to: a release before 4.9

1. Check installed version

apt-cache policy openshift-container-platform-for-ibm-linuxone || rpm -q openshift-container-platform-for-ibm-linuxone || openshift-container-platform-for-ibm-linuxone --version

2. No fixed release: DOWNGRADE to a release before 4.9 (Debian / Ubuntu)

apt-cache madison openshift-container-platform-for-ibm-linuxone sudo apt install openshift-container-platform-for-ibm-linuxone=<VERSION_BEFORE_4.9> sudo apt-mark hold openshift-container-platform-for-ibm-linuxone

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list openshift-container-platform-for-ibm-linuxone sudo dnf downgrade openshift-container-platform-for-ibm-linuxone-<VERSION_BEFORE_4.9> sudo dnf versionlock add openshift-container-platform-for-ibm-linuxone

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

redhat openshift container platform for power DOWNGRADE

Affected: 4.9 · 4.10

Fixed in: no fixed release known

Safe to downgrade to: a release before 4.9

1. Check installed version

apt-cache policy openshift-container-platform-for-power || rpm -q openshift-container-platform-for-power || openshift-container-platform-for-power --version

2. No fixed release: DOWNGRADE to a release before 4.9 (Debian / Ubuntu)

apt-cache madison openshift-container-platform-for-power sudo apt install openshift-container-platform-for-power=<VERSION_BEFORE_4.9> sudo apt-mark hold openshift-container-platform-for-power

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list openshift-container-platform-for-power sudo dnf downgrade openshift-container-platform-for-power-<VERSION_BEFORE_4.9> sudo dnf versionlock add openshift-container-platform-for-power

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2022-4361?

keycloak: upgrade to 21.1.2; single sign-on: upgrade to 7.6.4; openshift container platform: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2022-4361 being exploited?

CVE-2022-4361 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2022-4361 affect?

CVE-2022-4361 affects keycloak, single sign-on, openshift container platform. Severity is critical (CVSS 10.0). Keycloak, an open-source identity and access management solution, has a cross-site scripting (XSS) vulnerability in the SAML or OIDC providers. The vulnerability can allow an attacker to execute malicious scripts by setting the AssertionCon

How urgent is CVE-2022-4361?

Priority 58/100. Critical severity; Remotely exploitable, no login, no user action; On your watchlist

Software pages

Keycloak vulnerabilities · Red Hat OpenShift vulnerabilities

Related CVEs

CVE-2023-6927 MEDIUM 4.6 MITIGATE DOWNGRADE A flaw was found in Keycloak
CVE-2023-6563 HIGH 7.7 UPGRADE DOWNGRADE An unconstrained memory consumption vulnerability was discovered in Keycloak
CVE-2023-6291 HIGH 7.1 UPGRADE DOWNGRADE A flaw was found in the redirect_uri validation logic in Keycloak
CVE-2023-6134 MEDIUM 4.6 UPGRADE UPGRADE A flaw was found in Keycloak that prevents certain schemes in redirects, but permits them if a wildcard is app
CVE-2025-8419 MEDIUM 5.3 MITIGATE A vulnerability was found in Keycloak-services

References

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