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Fencer Intel
high 7.1

CVE-2020-1718 json

Improper Authentication for Keycloak

published 6y ago modified 4mo ago also GHSA-j229-2h63-rvh9 , EUVD-2022-1060

cvss
7.1
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.0%
EPSS 1.0% chance of exploitation in 30 days, percentile 63%
public exploits
0
none known

Summary

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.

Patch / fix

  • maven org.keycloak:keycloak-parent 8.0.0
  • redhat keycloak 8.0.0
  • rh-sso7-keycloak red hat single sign on 7 4.8.20-1.Final_redhat_00001.1.el8sso
  • rh-sso7-keycloak-server red hat single sign on 7 4.8.20-1.Final_redhat_00001.1.el8sso
  • rh-sso7-keycloak red hat single sign on 7 4.8.20-1.Final_redhat_00001.1.el7sso
  • rh-sso7-keycloak-server red hat single sign on 7 4.8.20-1.Final_redhat_00001.1.el7sso
  • rh-sso7-keycloak red hat single sign on 7 4.8.20-1.Final_redhat_00001.1.el6sso
  • rh-sso7-keycloak-server red hat single sign on 7 4.8.20-1.Final_redhat_00001.1.el6sso

red hat advisories RHSA-2020:2108RHSA-2020:2107RHSA-2020:2106

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2020-1718 updated cvss 8.8

keycloak: security issue on reset credential flow

  • Red Hat OpenShift Application Runtimes keycloak keycloak Red Hat support for Spring Boot keycloak keycloak
    affected: workaround, no fix available “Disable reset credential flow.”
  • Red Hat Decision Manager 7
    fixed: vendor fix “Disable reset credential flow.” RHSA-2020:3196
  • Red Hat Process Automation 7
    fixed: vendor fix “Disable reset credential flow.” RHSA-2020:3197
  • Red Hat Runtimes Spring Boot 2.2.6
    fixed: vendor fix “Disable reset credential flow.” RHSA-2020:2252
  • Red Hat Single Sign On 7.3.8
    fixed: vendor fix “Disable reset credential flow.” RHSA-2020:2112
  • Red Hat Single Sign-On 7.3 for RHEL 6 Server rh-sso7-keycloak 4.8.20-1.Final_redhat_00001.1.el6sso, rh-sso7-keycloak-server 4.8.20-1.Final_redhat_00001.1.el6sso
    fixed: vendor fix “Disable reset credential flow.” RHSA-2020:2106
  • Red Hat Single Sign-On 7.3 for RHEL 7 Server rh-sso7-keycloak 4.8.20-1.Final_redhat_00001.1.el7sso, rh-sso7-keycloak-server 4.8.20-1.Final_redhat_00001.1.el7sso
    fixed: vendor fix “Disable reset credential flow.” RHSA-2020:2107
  • Red Hat Single Sign-On 7.3 for RHEL 8 rh-sso7-keycloak 4.8.20-1.Final_redhat_00001.1.el8sso, rh-sso7-keycloak-server 4.8.20-1.Final_redhat_00001.1.el8sso
    fixed: vendor fix “Disable reset credential flow.” RHSA-2020:2108
show 2 more
  • Red Hat Text-Only RHOAR
    fixed: vendor fix “Disable reset credential flow.” RHSA-2020:2905
  • Red Hat Fuse 7 keycloak keycloak
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.00% chance of exploitation in the next 30 days, higher than 63% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.1 7.1 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:H
NVD 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 6.5 AV:N/AC:L/Au:S/C:P/I:P/A:P
GitHub 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
maven org.keycloak:keycloak-parent
<8.0.0
8.0.0

Affected products

  • Red Hat keycloak

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.