GHSA-jxhc-q857-3j6g · 深刻度： high · エコシステム： rubygems — Regular Expression Denial of Service in Addressable templates
Addressable is an alternative implementation to the URI implementation that is part of Ruby's standard library. An uncontrolled resource consumption vulnerability exists after version 2.3.0 through version 2.7.0. Within the URI template implementation in Addressable, a maliciously crafted template may result in uncontrolled resource consumption, leading to denial of service when matched against a URI. In typical usage, templates would not normally be read from untrusted user input, but nonetheless, no previous security advisory for Addressable has cautioned against doing this. Users of the parsing capabilities in Addressable but not the URI template capabilities are unaffected. The vulnerability is patched in version 2.8.0. As a workaround, only create Template objects from trusted sources that have been validated not to produce catastrophic backtracking.
総合評価: CVE-2021-32740 は中リスク（57.7/100）。CVSS 深刻度は高。悪用される可能性が高い（EPSS 2.20%、80 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 | 2.53% | 2.20% | -0.33% |
| 2 | 2026-05-03 | 0.89% | 2.53% | +1.64% |
| 3 | 2026-01-27 | — | 0.89% | — |
EPSS の全履歴 （全 18 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 |
|---|---|---|---|---|---|---|
| 7.5 | 3.1 | HIGH |
|
3.9 | 3.6 | [email protected] |
| 7.5 | 3.1 | HIGH |
|
3.9 | 3.6 | [email protected] |
| 5.0 | 2.0 | MEDIUM |
|
10.0 | 2.9 | [email protected] |
GHSA-jxhc-q857-3j6g · 深刻度： high · エコシステム： rubygems — Regular Expression Denial of Service in Addressable templates
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
high | CVE-2021-32740: 1 source package rows (ruby-addressable); 7 state rows across 7 repos (3.17-community, 3.18-community, 3.19-community, 3.20-community, 3.21-community, 3.22-community, edge-community); fixed 7, open 0. | https://security.alpinelinux.org/vuln/CVE-2021-32740 |
debian
|
not yet assigned | CVE-2021-32740 not yet assigned priority: Debian including 1 source packages (ruby-addressable), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2021-32740 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2021-32740 |
suse
|
high | — | https://www.suse.com/security/cve/CVE-2021-32740/ |
ubuntu
|
low | CVE-2021-32740 low priority: Ubuntu including 1 source packages (ruby-addressable), 16 status rows across 16 suites (bionic, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): not-affected 9, needs-triage 3, ignored 2, DNE 1, released 1. | https://ubuntu.com/security/CVE-2021-32740 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| addressable_project | addressable | >= 2.3.0, < 2.8.0 | cpe:2.3:a:addressable_project:addressable:*:*:*:*:*:ruby:*:* |
| fedoraproject | fedora | 33 | cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* |
| fedoraproject | fedora | 34 | cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* |