mod_auth_openidc is an OpenID Certified™ authentication and authorization module for the Apache 2.x HTTP server. Versions prior to 2.4.12.2 are vulnerable to Open Redirect. When providing a logout parameter to the redirect URI, the existing code in oidc_validate_redirect_url() does not properly check for URLs that start with /\t, leading to an open redirect. This issue has been patched in version 2.4.12.2. Users unable to upgrade can mitigate the issue by configuring mod_auth_openidc to only allow redirection when the destination matches a given regular expression with OIDCRedirectURLsAllowed.
総合評価: CVE-2022-23527 は低リスク(38.3/100)。CVSS 深刻度は中。悪用される可能性が高い(EPSS 0.90%、55 パーセンタイル) 推奨対応: 悪用情報と EPSS の推移を監視し、必要に応じて優先度を見直してください。
リスクは変動します。再評価に基づき、本ページの表示内容を更新しています。
EPSS は日次で悪用されやすさの相対度合いを推定します。パーセンタイルは採点済み CVE の中での相対位置(高いほど相対的に深刻)を示します。
| # | 日付 | 旧 EPSS スコア | 新 EPSS スコア | Δ(新 − 旧) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.52% | 0.90% | +0.38% |
| 2 | 2026-05-28 | 0.42% | 0.52% | +0.10% |
| 3 | 2026-01-16 | — | 0.42% | — |
EPSS の全履歴 (全 16 件)
この CVE の CVSS 指標。
| ベーススコア | バージョン | 深刻度 | ベクトル | 悪用しやすさ | 影響 | スコアの出典 |
|---|---|---|---|---|---|---|
| 4.7 | 3.1 | MEDIUM |
|
2.8 | 1.4 | [email protected] |
| 6.1 | 3.1 | MEDIUM |
|
2.8 | 2.7 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2022-23527 not yet assigned priority: Debian including 1 source packages (libapache2-mod-auth-openidc), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2022-23527 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2022-23527 |
suse
|
medium | CVE-2022-23527 severity moderate: SUSE including 9 source package names (apache2-mod_auth_openidc-2.3.8-150100.3.22.1, apache2-mod_auth_openidc-2.4.0-7.9.1, …), 21 product×package rows across 19 product lines (SUSE Liberty Linux 8, SUSE Liberty Linux 9, … (19 product lines)): Fixed 21. | https://www.suse.com/security/cve/CVE-2022-23527/ |
ubuntu
|
medium | CVE-2022-23527 medium priority: Ubuntu including 1 source packages (libapache2-mod-auth-openidc), 13 status rows across 13 suites (bionic, focal, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): not-affected 6, ignored 3, needed 3, released 1. | https://ubuntu.com/security/CVE-2022-23527 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| openidc | mod_auth_openidc | < 2.4.12.2 | cpe:2.3:a:openidc:mod_auth_openidc:*:*:*:*:*:*:*:* |
| debian | debian_linux | 10.0 | cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* |