GHSA-4428-9rh9-r27g · 深刻度: critical — An issue was discovered in OpenStack keystonemiddleware 10.5 through 10.7 before 10.7.2, 10.8 and...
An issue was discovered in OpenStack keystonemiddleware 10.5 through 10.7 before 10.7.2, 10.8 and 10.9 before 10.9.1, and 10.10 through 10.12 before 10.12.1. The external_oauth2_token middleware fails to sanitize incoming authentication headers before processing OAuth 2.0 tokens. By sending forged identity headers such as X-Is-Admin-Project, X-Roles, or X-User-Id, an authenticated attacker may escalate privileges or impersonate other users. All deployments using the external_oauth2_token middleware are affected.
総合評価: CVE-2026-22797 は中リスク(54.8/100)。CVSS 深刻度は重大。悪用される可能性が高い(EPSS 0.57%、43 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 | 2026-06-30 | 0.45% | 0.57% | +0.12% |
| 2 | 2026-06-15 | 0.11% | 0.45% | +0.35% |
| 3 | 2026-06-13 | — | 0.11% | — |
EPSS の全履歴 (全 5 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 |
|---|---|---|---|---|---|---|
| 9.9 | 3.1 | CRITICAL |
|
3.1 | 6.0 | [email protected] |
| 9.9 | 3.1 | CRITICAL |
|
3.1 | 6.0 | 0b0ca135-0b70-47e7-9f44-1890c2a1c46c |
GHSA-4428-9rh9-r27g · 深刻度: critical — An issue was discovered in OpenStack keystonemiddleware 10.5 through 10.7 before 10.7.2, 10.8 and...
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
unimportant | CVE-2026-22797 unimportant priority: Debian including 1 source packages (python-keystonemiddleware), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2026-22797 |
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2026-22797 |
ubuntu
|
medium | CVE-2026-22797 medium priority: Ubuntu including 1 source packages (python-keystonemiddleware), 7 status rows across 7 suites (bionic, focal, jammy, noble, questing, upstream, xenial): not-affected 4, released 3. | https://ubuntu.com/security/CVE-2026-22797 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| openstack | keystonemiddleware | >= 10.5.0, < 10.7.2 | cpe:2.3:a:openstack:keystonemiddleware:*:*:*:*:*:*:*:* |
| openstack | keystonemiddleware | >= 10.8.0, < 10.9.1 | cpe:2.3:a:openstack:keystonemiddleware:*:*:*:*:*:*:*:* |
| openstack | keystonemiddleware | >= 10.10.0, < 10.12.1 | cpe:2.3:a:openstack:keystonemiddleware:*:*:*:*:*:*:*:* |