> For the complete documentation index, see [llms.txt](https://docs.keeper.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.keeper.io/release-notes/jp/enterprise/sso-connect/sso-connect-on-prem-17.0.2.md).

# オンプレミスSSOコネクト 17.1.1

本リリースでは、SAML処理のセキュリティ強化とライブラリの更新を行いました。管理者側での構成変更は不要です。

#### 新機能 <a href="#whats-new" id="whats-new"></a>

* SAML検証処理を強化し、レスポンスおよびアサーションの検証を厳格化
* SAMLライブラリを現行のKeycloak SAML版に更新

#### 改善 <a href="#improvements.1" id="improvements.1"></a>

* 属性の抽出と検証を見直し、すべてのSSOフローで Audience、Recipient、有効期限の検証を強化
* 依存関係を整理し、脆弱性リスクの低減とサポート対象バージョンとの整合

#### セキュリティおよびバグ修正 <a href="#security-and-bug-fixes" id="security-and-bug-fixes"></a>

* Keycloak SAMLコンポーネントを26.6.2に更新 (上流のアドバイザリ対応)
* **KSC-522:** SAML認証バイパスに該当する脆弱性に対応。SAML Responseの署名を必須化し、アサーションを包括的に検証。悪用経路の確認、修正、回帰テストを実施

#### 互換性およびアップグレードに関する注意 <a href="#compatibility-and-upgrade-notes" id="compatibility-and-upgrade-notes"></a>

* 管理者側での構成更新は不要
* 本番環境へ展開する前に、非本番環境で IdP (Okta、Entra ID、ADFS、Ping、Keycloak) とのSSOサインインを確認することを推奨


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