CVE-2023-6291: Keycloak: redirect_uri validation bypass

Description

A flaw was found in the redirect_uri validation logic in Keycloak. This issue may allow a bypass of otherwise explicitly allowed hosts. A successful attack may lead to an access token being stolen, making it possible for the attacker to impersonate other users.

Classification

CVE ID: CVE-2023-6291

Affected Products

Vendor: Red Hat

Product: Red Hat build of Keycloak 22

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.34% (probability of being exploited)

EPSS Percentile: 71.36% (scored less or equal to compared to others)

EPSS Date: 2025-02-04 (when was this score calculated)

References

Timeline

2024-12-14 00:30:17 UTC
CVE

Keycloak: redirect_uri validation bypass