Keycloak vulnerable to path traversal via double URL encoding

緊急 9.1CVE-2022-3782 · GHSA-g8q8-fggx-9r3q · 13/01/2023 公開 · 17/06/2026 更新

要点

CVE-2022-3782 は org.keycloak:keycloak-parent, keycloak (redhat) に影響する深刻度「緊急」 (CVSS 9.1) の脆弱性です。
今後30日間に悪用される確率（EPSS）：6.0%（全脆弱性の 93.3% より高い）。
対処：20.0.2 以降に更新してください。

パッケージ	影響を受けるバージョン	修正済みバージョン
org.keycloak:keycloak-parent Maven	`< 20.0.2`	`20.0.2`
keycloak redhat	`= 20.0.2`	修正版なし

概要

Keycloak does not properly validate URLs included in a redirect. An attacker could construct a malicious request to bypass validation and access other URLs and potentially sensitive information within the domain, or possibly conduct further attacks.

NVD の説明

keycloak: path traversal via double URL encoding. A flaw was found in Keycloak, where it does not properly validate URLs included in a redirect. An attacker can use this flaw to construct a malicious request to bypass validation and access other URLs and potentially sensitive information within the domain or possibly conduct further attacks. This flaw affects any client that utilizes a wildcard in the Valid Redirect URIs field.