CVE-2022-1245

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2022-07-08 · updated 2026-06-17
Weakness: CWE-862

Description

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.

Affected products

Keycloak: before 18.0.0 — fixed in 18.0.0

How to fix

Upgrade to a fixed version: Keycloak 18.0.0. Check the vendor advisory for mitigations.

References

https://github.com/keycloak/keycloak/security/advisories/GHSA-75p6-52g3-rqc8
https://github.com/keycloak/keycloak/security/advisories/GHSA-75p6-52g3-rqc8

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