GHSA-97g8-xfvw-q4hg · 深刻度： medium · エコシステム： maven — Keycloak vulnerable to session takeover with OIDC offline refreshtokens
A flaw was found in the offline_access scope in Keycloak. This issue would affect users of shared computers more (especially if cookies are not cleared), due to a lack of root session validation, and the reuse of session ids across root and user authentication sessions. This enables an attacker to resolve a user session attached to a previously authenticated user; when utilizing the refresh token, they will be issued a token for the original user.
総合評価: CVE-2022-3916 は中リスク（47.7/100）。CVSS 深刻度は中。悪用される可能性が高い（EPSS 0.95%、57 パーセンタイル） 推奨対応: 影響資産を整理し、修補計画に組み込んでください。
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 | 0.23% | 0.95% | +0.73% |
| 2 | 2025-11-21 | 0.54% | 0.23% | -0.32% |
| 3 | 2025-11-18 | — | 0.54% | — |
EPSS の全履歴 （全 10 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 |
|---|---|---|---|---|---|---|
| 6.8 | 3.1 | MEDIUM |
|
1.6 | 5.2 | [email protected] |
| 6.8 | 3.1 | MEDIUM |
|
1.6 | 5.2 | [email protected] |
GHSA-97g8-xfvw-q4hg · 深刻度： medium · エコシステム： maven — Keycloak vulnerable to session takeover with OIDC offline refreshtokens
| vendor | priority | summary | link |
|---|---|---|---|
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2022-3916 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| redhat | keycloak | < 20.0.2 | cpe:2.3:a:redhat:keycloak:*:*:*:*:*:*:*:* |
| redhat | single_sign-on | — | cpe:2.3:a:redhat:single_sign-on:-:*:*:*:text-only:*:*:* |
| redhat | single_sign-on | 7.6 | cpe:2.3:a:redhat:single_sign-on:7.6:*:*:*:*:*:*:* |
| redhat | openshift_container_platform | 4.9 | cpe:2.3:a:redhat:openshift_container_platform:4.9:*:*:*:*:*:*:* |
| redhat | openshift_container_platform | 4.10 | cpe:2.3:a:redhat:openshift_container_platform:4.10:*:*:*:*:*:*:* |
| redhat | openshift_container_platform_for_linuxone | 4.9 | cpe:2.3:a:redhat:openshift_container_platform_for_linuxone:4.9:*:*:*:*:*:*:* |
| redhat | openshift_container_platform_for_linuxone | 4.10 | cpe:2.3:a:redhat:openshift_container_platform_for_linuxone:4.10:*:*:*:*:*:*:* |
| redhat | openshift_container_platform_for_power | 4.9 | cpe:2.3:a:redhat:openshift_container_platform_for_power:4.9:*:*:*:*:*:*:* |
| redhat | openshift_container_platform_for_power | 4.10 | cpe:2.3:a:redhat:openshift_container_platform_for_power:4.10:*:*:*:*:*:*:* |
| redhat | openshift_container_platform_ibm_z_systems | 4.9 | cpe:2.3:a:redhat:openshift_container_platform_ibm_z_systems:4.9:*:*:*:*:*:*:* |
| redhat | openshift_container_platform_ibm_z_systems | 4.10 | cpe:2.3:a:redhat:openshift_container_platform_ibm_z_systems:4.10:*:*:*:*:*:*:* |
| URL | タグ |
|---|---|
| https://access.redhat.com/errata/RHSA-2022:8961 | Vendor Advisory |
| https://access.redhat.com/errata/RHSA-2022:8962 | Vendor Advisory |
| https://access.redhat.com/errata/RHSA-2022:8963 | Vendor Advisory |
| https://access.redhat.com/errata/RHSA-2022:8964 | Vendor Advisory |
| https://access.redhat.com/errata/RHSA-2022:8965 | Vendor Advisory |
| https://access.redhat.com/errata/RHSA-2023:1043 | Vendor Advisory |
| https://access.redhat.com/errata/RHSA-2023:1044 | Vendor Advisory |
| https://access.redhat.com/errata/RHSA-2023:1045 | Vendor Advisory |
| https://access.redhat.com/errata/RHSA-2023:1047 | Vendor Advisory |
| https://access.redhat.com/errata/RHSA-2023:1049 | Vendor Advisory |
| https://access.redhat.com/security/cve/CVE-2022-3916 | Vendor Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=2141404 | Issue Tracking Vendor Advisory |