CVE-2020-1718: A flaw was found in the reset credential flow in all Keycloak versions before 8.0.0

Q: How do I fix CVE-2020-1718?

jboss fuse: downgrade or apply the listed mitigation; keycloak: upgrade to 8.0.0; openshift application runtimes: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Q: Is CVE-2020-1718 being exploited?

CVE-2020-1718 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2020-1718 affect?

CVE-2020-1718 affects jboss fuse, keycloak, openshift application runtimes. Severity is high (CVSS 7.1). A flaw was found in the reset credential flow in all Keycloak versions before 8.0.0. This flaw allows an attacker to gain unauthorized access to the application.

Q: How urgent is CVE-2020-1718?

Priority 46/100. High severity; On your watchlist

This month

HIGH 7.1WATCHLISTDOWNGRADEUPGRADEMITIGATE

CVE-2020-1718 is a high-severity flaw (CVSS 7.1) affecting jboss fuse, keycloak, openshift application runtimes. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A flaw was found in the reset credential flow in all Keycloak versions before 8.0.0. This flaw allows an attacker to gain unauthorized access to the application.

Why this priority

High severity
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	7.1 (High)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	Low
User interaction	None
EPSS exploit chance	1.0% (top 37%)
CISA exploited list	No
Weakness	CWE-287
Published	2020-05-12
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

2020-05-12 21:15 UTCPublished CVE record published
2026-06-17 03:02 UTCUpdated Record last modified

redhat jboss fuse DOWNGRADE

Affected: 7.0.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 7.0.0

1. Check installed version

apt-cache policy jboss-fuse || rpm -q jboss-fuse || jboss-fuse --version

2. No fixed release: DOWNGRADE to a release before 7.0.0 (Debian / Ubuntu)

apt-cache madison jboss-fuse sudo apt install jboss-fuse=<VERSION_BEFORE_7.0.0> sudo apt-mark hold jboss-fuse

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

dnf --showduplicates list jboss-fuse sudo dnf downgrade jboss-fuse-<VERSION_BEFORE_7.0.0> sudo dnf versionlock add jboss-fuse

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 keycloak UPGRADE

Affected: < 8.0.0

Fixed in: 8.0.0

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 8.0.0 (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 openshift application runtimes MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy openshift-application-runtimes || rpm -q openshift-application-runtimes || openshift-application-runtimes --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

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-2020-1718?

jboss fuse: downgrade or apply the listed mitigation; keycloak: upgrade to 8.0.0; openshift application runtimes: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2020-1718 being exploited?

CVE-2020-1718 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-2020-1718 affect?

CVE-2020-1718 affects jboss fuse, keycloak, openshift application runtimes. Severity is high (CVSS 7.1). A flaw was found in the reset credential flow in all Keycloak versions before 8.0.0. This flaw allows an attacker to gain unauthorized access to the application.

How urgent is CVE-2020-1718?

Priority 46/100. High severity; On your watchlist

Software pages

Keycloak vulnerabilities · JBoss and WildFly vulnerabilities · Red Hat OpenShift vulnerabilities

Related CVEs

CVE-2019-14892 CRITICAL 9.8 UPGRADE DOWNGRADE A flaw was discovered in jackson-databind in versions before 2.9.10, 2.8.11.5 and 2.6.7.3, where it would perm
CVE-2022-4492 HIGH 7.5 MITIGATE MITIGATE The undertow client is not checking the server identity presented by the server certificate in https connectio
CVE-2022-2764 MEDIUM 4.9 MITIGATE DOWNGRADE A flaw was found in Undertow
CVE-2022-2053 HIGH 7.5 MITIGATE DOWNGRADE When a POST request comes through AJP and the request exceeds the max-post-size limit (maxEntitySize), Underto
CVE-2020-27782 HIGH 7.5 DOWNGRADE MITIGATE A flaw was found in the Undertow AJP connector

References

← Back to latest CVEs