Some mod_proxy configurations on Apache HTTP Server versions 2.4.0 through 2.4.55 allow a HTTP Request Smuggling attack. Configurations are affected when mod_proxy is enabled along with some form of RewriteRule or ProxyPassMatch in which a non-specific pattern matches some portion of the user-supplied request-target (URL) data and is then re-inserted into the proxied request-target using variable substitution. For example, something like: RewriteEngine on RewriteRule "^/here/(.*)" "http://example.com:8080/elsewhere?$1"; [P] ProxyPassReverse /here/ http://example.com:8080/ Request splitting/smuggling could result in bypass of access controls in the proxy server, proxying unintended URLs to existing origin servers, and cache poisoning. Users are recommended to update to at least version 2.4.56 of Apache HTTP Server.
総合評価: CVE-2023-25690 は高リスク（79.1/100）。CVSS 深刻度は重大。悪用される可能性が高い（EPSS 83.77%、100 パーセンタイル） 根拠: EPSS 上、短期間での悪用可能性は高い水準です。 直近 1 日で EPSS が +16.76% 上昇。悪用への関心が高まっている可能性があります。 推奨対応: 悪用可能性が高いため、影響範囲の確認と修補の優先付けを推奨します。
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 | 67.01% | 83.77% | +16.76% |
| 2 | 2026-05-17 | 68.18% | 67.01% | -1.17% |
| 3 | 2026-03-08 | — | 68.18% | — |
EPSS の全履歴 （全 65 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 |
|---|---|---|---|---|---|---|
| 9.8 | 3.1 | CRITICAL |
|
3.9 | 5.9 | [email protected] |
| 9.8 | 3.1 | CRITICAL |
|
3.9 | 5.9 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
— | CVE-2023-25690: 1 source package rows (apache2); 7 state rows across 7 repos (3.17-main, 3.18-main, 3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 7, open 0. | https://security.alpinelinux.org/vuln/CVE-2023-25690 |
debian
|
not yet assigned | CVE-2023-25690 not yet assigned priority: Debian including 1 source packages (apache2), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2023-25690 |
gentoo
|
low | CVE-2023-25690: 1 GLSA(s) (202309-01), 1 atom(s) (www-servers/apache); latest impact low. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2023-25690 |
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2023-25690 |
suse
|
high | CVE-2023-25690 severity important: SUSE including 326 source package names (2.8-13.5:apache2-utils-2.4.51-150400.6.11.1, 4.3.6.9.31.1:apache2-2.4.51-150400.6.11.1, …), 598 product×package rows across 89 product lines (Container bci/php-apache, Container suse/manager/4.3/proxy-httpd, … (89 product lines)): Fixed 367, Known Affected 231. | https://www.suse.com/security/cve/CVE-2023-25690/ |
ubuntu
|
medium | CVE-2023-25690 medium priority: Ubuntu including 1 source packages (apache2), 13 status rows across 13 suites (bionic, focal, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): released 12, needed 1. | https://ubuntu.com/security/CVE-2023-25690 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| apache | http_server | >= 2.4.0, <= 2.4.55 | cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:* |