NGINX before 1.17.7, with certain error_page configurations, allows HTTP request smuggling, as demonstrated by the ability of an attacker to read unauthorized web pages in environments where NGINX is being fronted by a load balancer.
総合評価: CVE-2019-20372 は悪用リスクが高い（71/100）。CVSS 深刻度は中。悪用される可能性が高い（EPSS 69.57%、99 パーセンタイル） 根拠: 公開エクスプロイトが 1 件参照されています（Exploit-DB）。 推奨対応: 公開エクスプロイトが確認されています。影響範囲の確認、緩和策の適用、パッチ適用を優先してください。
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。
| EDB-ID | ソース | 種別 | 公開 | リンク |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
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 | 2026-05-26 | 69.32% | 69.57% | +0.25% |
| 2 | 2026-05-24 | 69.75% | 69.32% | -0.43% |
| 3 | 2026-05-22 | — | 69.75% | — |
EPSS の全履歴 （全 61 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 |
|---|---|---|---|---|---|---|
| 5.3 | 3.1 | MEDIUM |
|
3.9 | 1.4 | [email protected] |
| 4.3 | 2.0 | MEDIUM |
|
8.6 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
medium | CVE-2019-20372: 1 source package rows (nginx); 26 state rows across 10 repos (3.10-main, 3.11-main, 3.12-main, 3.17-main, 3.18-main, 3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 11, open 15. | https://security.alpinelinux.org/vuln/CVE-2019-20372 |
debian
|
low | CVE-2019-20372 low priority: Debian including 1 source packages (nginx), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2019-20372 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2019-20372 |
suse
|
medium | CVE-2019-20372 severity moderate: SUSE including 29 source package names (nginx, nginx-1.14.2-6.7.1, …), 32 product×package rows across 13 product lines (SUSE Liberty Linux 8, SUSE Linux Enterprise High Performance Computing 15-ESPOS, … (13 product lines)): Fixed 30, Known Not Affected 2. | https://www.suse.com/security/cve/CVE-2019-20372/ |
ubuntu
|
medium | CVE-2019-20372 medium priority: Ubuntu including 1 source packages (nginx), 6 status rows across 6 suites (bionic, disco, eoan, trusty, upstream, xenial): released 6. | https://ubuntu.com/security/CVE-2019-20372 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| f5 | nginx | < 1.17.7 | cpe:2.3:a:f5:nginx:*:*:*:*:*:*:*:* |
| apple | xcode | < 13.0 | cpe:2.3:a:apple:xcode:*:*:*:*:*:*:*:* |
| canonical | ubuntu_linux | 14.04 | cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:* |
| opensuse | leap | 15.1 | cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* |
| netapp | cloud_backup | — | cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:* |
| URL | タグ |
|---|---|
| http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00013.html | Mailing List Third Party Advisory |
| http://nginx.org/en/CHANGES | Mitigation Release Notes Vendor Advisory |
| http://seclists.org/fulldisclosure/2021/Sep/36 | Mailing List Third Party Advisory |
| https://bertjwregeer.keybase.pub/2019-12-10%20-%20error_page%20request%20smuggling.pdf | Exploit Mitigation Third Party Advisory |
| https://duo.com/docs/dng-notes#version-1.5.4-january-2020 | Release Notes Third Party Advisory |
| https://github.com/kubernetes/ingress-nginx/pull/4859 | Patch Third Party Advisory |
| https://github.com/nginx/nginx/commit/c1be55f97211d38b69ac0c2027e6812ab8b1b94e | Patch Vendor Advisory |
| https://security.netapp.com/advisory/ntap-20200127-0003/ | Third Party Advisory |
| https://support.apple.com/kb/HT212818 | Third Party Advisory |
| https://usn.ubuntu.com/4235-1/ | Third Party Advisory |
| https://usn.ubuntu.com/4235-2/ | Third Party Advisory |