A vulnerability exists in NGINX OSS and NGINX Plus when configured to proxy to upstream Transport Layer Security (TLS) servers. An attacker with a man-in-the-middle (MITM) position on the upstream server side—along with conditions beyond the attacker's control—may be able to inject plain text data into the response from an upstream proxied server. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
総合評価: CVE-2026-1642 は中リスク(41.7/100)。CVSS 深刻度は高。悪用される可能性が高い(EPSS 0.33%、25 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 | 0.01% | 0.33% | +0.32% |
| 2 | 2026-02-05 | — | 0.01% | — |
EPSS の全履歴 (全 2 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 |
|---|---|---|---|---|---|---|
| 8.2 | 4.0 | HIGH |
|
— | — | [email protected] |
| 5.9 | 3.1 | MEDIUM |
|
2.2 | 3.6 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
— | CVE-2026-1642: 1 source package rows (nginx); 3 state rows across 3 repos (3.22-main, 3.23-main, edge-main); fixed 3, open 0. | https://security.alpinelinux.org/vuln/CVE-2026-1642 |
debian
|
not yet assigned | CVE-2026-1642 not yet assigned 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-2026-1642 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2026-1642 |
suse
|
medium | CVE-2026-1642 severity moderate: SUSE including 2 source package names (nginx-1.29.5-1.1, nginx-source-1.29.5-1.1), 2 product×package rows across 1 product lines (openSUSE Tumbleweed): Fixed 2. | https://www.suse.com/security/cve/CVE-2026-1642/ |
ubuntu
|
medium | CVE-2026-1642 medium priority: Ubuntu including 1 source packages (nginx), 8 status rows across 8 suites (bionic, focal, jammy, noble, questing, trusty, upstream, xenial): needed 4, released 4. | https://ubuntu.com/security/CVE-2026-1642 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| f5 | nginx_gateway_fabric | >= 1.2.0, <= 1.6.2 | cpe:2.3:a:f5:nginx_gateway_fabric:*:*:*:*:*:*:*:* |
| f5 | nginx_gateway_fabric | >= 2.0.0, < 2.4.1 | cpe:2.3:a:f5:nginx_gateway_fabric:*:*:*:*:*:*:*:* |
| f5 | nginx_ingress_controller | >= 3.4.0, <= 3.7.2 | cpe:2.3:a:f5:nginx_ingress_controller:*:*:*:*:*:*:*:* |
| f5 | nginx_ingress_controller | >= 4.0.0, <= 4.0.1 | cpe:2.3:a:f5:nginx_ingress_controller:*:*:*:*:*:*:*:* |
| f5 | nginx_ingress_controller | >= 5.0.0, < 5.3.3 | cpe:2.3:a:f5:nginx_ingress_controller:*:*:*:*:*:*:*:* |
| f5 | nginx_instance_manager | >= 2.15.1, <= 2.21.0 | cpe:2.3:a:f5:nginx_instance_manager:*:*:*:*:*:*:*:* |
| f5 | nginx_open_source | >= 1.3.0, < 1.28.2 | cpe:2.3:a:f5:nginx_open_source:*:*:*:*:*:*:*:* |
| f5 | nginx_open_source | >= 1.29.0, < 1.29.5 | cpe:2.3:a:f5:nginx_open_source:*:*:*:*:*:*:*:* |
| f5 | nginx_plus | >= r33, < r35 | cpe:2.3:a:f5:nginx_plus:*:*:*:*:*:*:*:* |
| f5 | nginx_plus | r32 | cpe:2.3:a:f5:nginx_plus:r32:-:*:*:*:*:*:* |
| f5 | nginx_plus | r32 | cpe:2.3:a:f5:nginx_plus:r32:p1:*:*:*:*:*:* |
| f5 | nginx_plus | r32 | cpe:2.3:a:f5:nginx_plus:r32:p2:*:*:*:*:*:* |
| f5 | nginx_plus | r32 | cpe:2.3:a:f5:nginx_plus:r32:p3:*:*:*:*:*:* |
| f5 | nginx_plus | r33 | cpe:2.3:a:f5:nginx_plus:r33:p1:*:*:*:*:*:* |
| f5 | nginx_plus | r33 | cpe:2.3:a:f5:nginx_plus:r33:p2:*:*:*:*:*:* |
| f5 | nginx_plus | r33 | cpe:2.3:a:f5:nginx_plus:r33:p3:*:*:*:*:*:* |
| f5 | nginx_plus | r34 | cpe:2.3:a:f5:nginx_plus:r34:p1:*:*:*:*:*:* |
| f5 | nginx_plus | r34 | cpe:2.3:a:f5:nginx_plus:r34:p2:*:*:*:*:*:* |
| f5 | nginx_plus | r35 | cpe:2.3:a:f5:nginx_plus:r35:-:*:*:*:*:*:* |
| f5 | nginx_plus | r36 | cpe:2.3:a:f5:nginx_plus:r36:-:*:*:*:*:*:* |
| f5 | nginx_plus | r36 | cpe:2.3:a:f5:nginx_plus:r36:p1:*:*:*:*:*:* |
| URL | タグ |
|---|---|
| https://my.f5.com/manage/s/article/K000159824 | Vendor Advisory |
| http://www.openwall.com/lists/oss-security/2026/02/05/1 | Mailing List Third Party Advisory |