GHSA-qrqm-fpv6-6r8g · 深刻度： high · エコシステム： rubygems — Command Injection Vulnerability in Mechanize
Mechanize is an open-source ruby library that makes automated web interaction easy. In Mechanize from version 2.0.0 and before version 2.7.7 there is a command injection vulnerability. Affected versions of mechanize allow for OS commands to be injected using several classes' methods which implicitly use Ruby's Kernel.open method. Exploitation is possible only if untrusted input is used as a local filename and passed to any of these calls: Mechanize::CookieJar#load, Mechanize::CookieJar#save_as, Mechanize#download, Mechanize::Download#save, Mechanize::File#save, and Mechanize::FileResponse#read_body. This is fixed in version 2.7.7.
総合評価: CVE-2021-21289 は中リスク（61.3/100）。CVSS 深刻度は高。悪用される可能性が高い（EPSS 3.51%、88 パーセンタイル） 根拠: 直近 1 日で EPSS が +1.00% 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: 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 | 2.50% | 3.51% | +1.00% |
| 2 | 2025-11-21 | 1.74% | 2.50% | +0.76% |
| 3 | 2025-11-18 | — | 1.74% | — |
EPSS の全履歴 （全 14 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 |
|---|---|---|---|---|---|---|
| 7.4 | 3.1 | HIGH |
|
2.8 | 4.0 | [email protected] |
| 8.3 | 3.1 | HIGH |
|
1.6 | 6.0 | [email protected] |
| 7.6 | 2.0 | HIGH |
|
4.9 | 10.0 | [email protected] |
GHSA-qrqm-fpv6-6r8g · 深刻度： high · エコシステム： rubygems — Command Injection Vulnerability in Mechanize
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2021-21289 not yet assigned priority: Debian including 1 source packages (ruby-mechanize), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2021-21289 |
gentoo
|
high | CVE-2021-21289: 1 GLSA(s) (202107-17), 1 atom(s) (dev-ruby/mechanize); latest impact high. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2021-21289 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2021-21289 |
ubuntu
|
medium | CVE-2021-21289 medium priority: Ubuntu including 1 source packages (ruby-mechanize), 16 status rows across 16 suites (bionic, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): not-affected 6, ignored 4, needs-triage 4, DNE 1, released 1. | https://ubuntu.com/security/CVE-2021-21289 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| mechanize_project | mechanize | >= 2.0, < 2.7.7 | cpe:2.3:a:mechanize_project:mechanize:*:*:*:*:*:ruby:*:* |
| fedoraproject | fedora | 32 | cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* |
| fedoraproject | fedora | 33 | cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* |
| debian | debian_linux | 9.0 | cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* |
| URL | タグ |
|---|---|
| https://github.com/sparklemotion/mechanize/commit/66a6a1bfa653a5f13274a396a5e5441238656aa0 | Patch Third Party Advisory |
| https://github.com/sparklemotion/mechanize/releases/tag/v2.7.7 | Release Notes Third Party Advisory |
| https://github.com/sparklemotion/mechanize/security/advisories/GHSA-qrqm-fpv6-6r8g | Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2021/02/msg00021.html | Mailing List Third Party Advisory |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LBVVJUL4P4KCJH4IQTHFZ4ATXY7XXZPV/ | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YNFZ7ROYS6V4J5L5PRAJUG2AWC7VXR2V/ | |
| https://rubygems.org/gems/mechanize/ | Product Third Party Advisory |
| https://security.gentoo.org/glsa/202107-17 | Third Party Advisory |