GHSA-wg36-wvj6-r67p · 深刻度: high · エコシステム: composer — Composer has a command injection via malicious perforce repository
Composer is a dependency manager for PHP. Versions 1.0 through 2.2.26 and 2.3 through 2.9.5 contain a command injection vulnerability in the Perforce::generateP4Command() method, which constructs shell commands by interpolating user-supplied Perforce connection parameters (port, user, client) without proper escaping. An attacker can inject arbitrary commands through these values in a malicious composer.json declaring a Perforce VCS repository, leading to command execution in the context of the user running Composer, even if Perforce is not installed. VCS repositories are only loaded from the root composer.json or the composer config directory, so this cannot be exploited through composer.json files of packages installed as dependencies. Users are at risk if they run Composer commands on untrusted projects with attacker-supplied composer.json files. This issue has been fixed in Composer 2.2.27 (2.2 LTS) and 2.9.6 (mainline).
総合評価: CVE-2026-40176 は低リスク(31.9/100)。CVSS 深刻度は高。悪用される可能性が高い(EPSS 0.01%、2 パーセンタイル) 推奨対応: 悪用情報と EPSS の推移を監視し、必要に応じて優先度を見直してください。
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。
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 | 2026-04-16 | — | 0.01% | — |
EPSS の全履歴 (全 1 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 |
|---|---|---|---|---|---|---|
| 7.8 | 3.1 | HIGH |
|
1.8 | 5.9 | [email protected] |
GHSA-wg36-wvj6-r67p · 深刻度: high · エコシステム: composer — Composer has a command injection via malicious perforce repository
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
— | CVE-2026-40176: 1 source package rows (composer); 2 state rows across 2 repos (3.23-community, edge-community); fixed 2, open 0. | https://security.alpinelinux.org/vuln/CVE-2026-40176 |
debian
|
not yet assigned | CVE-2026-40176 not yet assigned priority: Debian including 1 source packages (composer), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 4, open 1. | https://security-tracker.debian.org/tracker/CVE-2026-40176 |
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2026-40176 |
suse
|
high | — | https://www.suse.com/security/cve/CVE-2026-40176/ |
ubuntu
|
medium | CVE-2026-40176 medium priority: Ubuntu including 1 source packages (composer), 8 status rows across 8 suites (bionic, focal, jammy, noble, questing, resolute, upstream, xenial): needs-triage 7, released 1. | https://ubuntu.com/security/CVE-2026-40176 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| getcomposer | composer | >= 1.0.0, <= 2.2.26 | cpe:2.3:a:getcomposer:composer:*:*:*:*:*:*:*:* |
| getcomposer | composer | >= 2.3.0, <= 2.9.5 | cpe:2.3:a:getcomposer:composer:*:*:*:*:*:*:*:* |
| URL | タグ |
|---|---|
| https://github.com/composer/composer/releases/tag/2.9.6 | Release Notes |
| https://github.com/composer/composer/security/advisories/GHSA-wg36-wvj6-r67p | Vendor Advisory |