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Fencer Vulns
critical 9.8

CVE-2022-1245 json

Keycloak vulnerable to privilege escalation on Token Exchange feature

published 2022-04-26 4 y ago modified 2026-07-16 3 mo ago also GHSA-75p6-52g3-rqc8 , EUVD-2022-1660

cvss
9.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.4%
EPSS 1.4% chance of exploitation in 30 days, percentile 73%
public exploits
0
none known

Summary

A privilege escalation flaw was found in the token exchange feature of keycloak. Missing authorization allows a client application holding a valid access token to exchange tokens for any target client by passing the client_id of the target. This could allow a client to gain unauthorized access to additional services.

Patch / fix

  • maven org.keycloak:keycloak-services 18.0.0
  • redhat keycloak 18.0.0
  • rh-sso7-keycloak red hat single sign on 7.5 15.0.6-1.redhat_00002.1.el7sso
  • rh-sso7-keycloak-server red hat single sign on 7.5 15.0.6-1.redhat_00002.1.el7sso
  • rh-sso7-keycloak red hat single sign on 7.5 15.0.6-1.redhat_00002.1.el8sso
  • rh-sso7-keycloak-server red hat single sign on 7.5 15.0.6-1.redhat_00002.1.el8sso

red hat advisories RHSA-2022:1711RHSA-2022:1712

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-2022-1245 updated cvss 8.0

keycloak: Privilege escalation vulnerability on Token Exchange

  • Red Hat Middleware Containers for OpenShift rh-sso-7/sso75-openshift-rhel8 7.5-26, rh-sso-7/sso7-rhel8-operator-bundle 7.5.2-8
    fixed: vendor fix RHSA-2022:1713
  • Red Hat Single Sign-On 7
    fixed: vendor fix RHSA-2022:1709
  • Red Hat Single Sign-On 7.5 for RHEL 7 Server rh-sso7-keycloak 15.0.6-1.redhat_00002.1.el7sso, rh-sso7-keycloak-server 15.0.6-1.redhat_00002.1.el7sso
    fixed: vendor fix RHSA-2022:1711
  • Red Hat Single Sign-On 7.5 for RHEL 8 rh-sso7-keycloak 15.0.6-1.redhat_00002.1.el8sso, rh-sso7-keycloak-server 15.0.6-1.redhat_00002.1.el8sso
    fixed: vendor fix RHSA-2022:1712

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

1.45% chance of exploitation in the next 30 days, higher than 73% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P
GitHub 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
maven org.keycloak:keycloak-services
<18.0.0
18.0.0

Affected products

  • n/a keycloak

Classification

Weakness
  • CWE-862 Missing Authorization
  • CWE-639 Authorization Bypass Through User-Controlled Key
  • CWE-863 Incorrect Authorization

References

Sources

Fencer Vulns 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.