GHSA-fw88-pf9m-p947 · 深刻度： critical · エコシステム： maven — Apache Artemis and Apache ActiveMQ Artemis are Missing Authentication for Critical Functions
Missing Authentication for Critical Function (CWE-306) vulnerability in Apache Artemis, Apache ActiveMQ Artemis. An unauthenticated remote attacker can use the Core protocol to force a target broker to establish an outbound Core federation connection to an attacker-controlled rogue broker. This could potentially result in message injection into any queue and/or message exfiltration from any queue via the rogue broker. This impacts environments that allow both: - incoming Core protocol connections from untrusted sources to the broker - outgoing Core protocol connections from the broker to untrusted targets This issue affects: - Apache Artemis from 2.50.0 through 2.51.0 - Apache ActiveMQ Artemis from 2.11.0 through 2.44.0. Users are recommended to upgrade to Apache Artemis version 2.52.0, which fixes the issue. The issue can be mitigated by one of the following: - Remove Core protocol support from any acceptor receiving connections from untrusted sources. Incoming Core protocol connections are supported by default via the "artemis" acceptor listening on port 61616. See the "protocols" URL parameter configured for the acceptor. An acceptor URL without this parameter supports all protocols by default, including Core. - Use two-way SSL (i.e. certificate-based authentication) in order to force every client to present the proper SSL certificate when establishing a connection before any message protocol handshake is attempted. This will prevent unauthenticated exploitation of this vulnerability. - Implement and deploy a Core interceptor to deny all Core downstream federation connect packets. Such packets have a type of (int) -16 or (byte) 0xfffffff0. Documentation for interceptors is available at https://artemis.apache.org/components/artemis/documentation/latest/intercepting-operations.html .
総合評価: CVE-2026-27446 は高リスク（72.8/100）。CVSS 深刻度は重大。悪用される可能性が高い（EPSS 10.63%、95 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 +2.29% 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 | 2026-06-30 | 8.34% | 10.63% | +2.29% |
| 2 | 2026-06-15 | 0.16% | 8.34% | +8.18% |
| 3 | 2026-05-13 | — | 0.16% | — |
EPSS の全履歴 （全 6 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 |
|---|---|---|---|---|---|---|
| 9.3 | 4.0 | CRITICAL |
|
— | — | [email protected] |
| 9.8 | 3.1 | CRITICAL |
|
3.9 | 5.9 | [email protected] |
| 9.1 | 3.1 | CRITICAL |
|
3.9 | 5.2 | 0b0ca135-0b70-47e7-9f44-1890c2a1c46c |
GHSA-fw88-pf9m-p947 · 深刻度： critical · エコシステム： maven — Apache Artemis and Apache ActiveMQ Artemis are Missing Authentication for Critical Functions
| vendor | priority | summary | link |
|---|---|---|---|
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2026-27446 |
ubuntu
|
medium | CVE-2026-27446 medium priority: Ubuntu including 1 source packages (activemq), 8 status rows across 8 suites (bionic, focal, jammy, noble, questing, resolute, upstream, xenial): needs-triage 8. | https://ubuntu.com/security/CVE-2026-27446 |