GHSA-h2h4-5m64-m273 · 深刻度： medium · エコシステム： maven — Apache ActiveMQ: Improper validation and restriction of a classpath path name
Improper validation and restriction of a classpath path name vulnerability in Apache ActiveMQ Client, Apache ActiveMQ Broker, Apache ActiveMQ All, Apache ActiveMQ Web, Apache ActiveMQ. In two instances (when creating a Stomp consumer and also browsing messages in the Web console) an authenticated user provided "key" value could be constructed to traverse the classpath due to path concatenation. As a result, the application is exposed to a classpath path resource loading vulnerability that could potentially be chained together with another attack to lead to exploit. This issue affects Apache ActiveMQ Client: before 5.19.3, from 6.0.0 before 6.2.2; Apache ActiveMQ Broker: before 5.19.3, from 6.0.0 before 6.2.2; Apache ActiveMQ All: before 5.19.3, from 6.0.0 before 6.2.2; Apache ActiveMQ Web: before 5.19.3, from 6.0.0 before 6.2.2; Apache ActiveMQ: before 5.19.3, from 6.0.0 before 6.2.2. Users are recommended to upgrade to version 5.19.4 or 6.2.3, which fixes the issue. Note: 5.19.3 and 6.2.2 also fix this issue, but that is limited to non-Windows environments due to a path separator resolution bug fixed in 5.19.4 and 6.2.3.
総合評価: CVE-2026-33227 は低リスク（29.2/100）。CVSS 深刻度は中。悪用される可能性が高い（EPSS 0.42%、33 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 | 2026-06-15 | 0.05% | 0.42% | +0.37% |
| 2 | 2026-04-13 | 0.04% | 0.05% | +0.01% |
| 3 | 2026-04-07 | — | 0.04% | — |
EPSS の全履歴 （全 3 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 |
|---|---|---|---|---|---|---|
| 4.3 | 3.1 | MEDIUM |
|
2.8 | 1.4 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
GHSA-h2h4-5m64-m273 · 深刻度： medium · エコシステム： maven — Apache ActiveMQ: Improper validation and restriction of a classpath path name
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2026-33227 not yet assigned priority: Debian including 1 source packages (activemq), 4 status rows across 4 suites (bookworm, bullseye, sid, trixie): open 4. | https://security-tracker.debian.org/tracker/CVE-2026-33227 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2026-33227 |
ubuntu
|
medium | CVE-2026-33227 medium priority: Ubuntu including 1 source packages (activemq), 7 status rows across 7 suites (bionic, focal, jammy, noble, questing, upstream, xenial): needs-triage 7. | https://ubuntu.com/security/CVE-2026-33227 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| apache | activemq | < 5.19.3 | cpe:2.3:a:apache:activemq:*:*:*:*:*:*:*:* |
| apache | activemq | >= 6.0.0, < 6.2.2 | cpe:2.3:a:apache:activemq:*:*:*:*:*:*:*:* |
| apache | activemq_broker | < 5.19.3 | cpe:2.3:a:apache:activemq_broker:*:*:*:*:*:*:*:* |
| apache | activemq_broker | >= 6.0.0, < 6.2.2 | cpe:2.3:a:apache:activemq_broker:*:*:*:*:*:*:*:* |
| apache | activemq_web | < 5.19.3 | cpe:2.3:a:apache:activemq_web:*:*:*:*:*:*:*:* |
| apache | activemq_web | >= 6.0.0, < 6.2.2 | cpe:2.3:a:apache:activemq_web:*:*:*:*:*:*:*:* |
| URL | タグ |
|---|---|
| https://activemq.apache.org/security-advisories.data/CVE-2026-33227-announcement.txt | Vendor Advisory |
| http://www.openwall.com/lists/oss-security/2026/04/06/4 | Mailing List Third Party Advisory |