GHSA-7xrh-hqfc-g7qr · 深刻度: high · エコシステム: maven — Apache ZooKeeper: Reverse-DNS fallback enables hostname verification bypass in ZooKeeper ZKTrustManager
Hostname verification in Apache ZooKeeper ZKTrustManager falls back to reverse DNS (PTR) when IP SAN validation fails, allowing attackers who control or spoof PTR records to impersonate ZooKeeper servers or clients with a valid certificate for the PTR name. It's important to note that attacker must present a certificate which is trusted by ZKTrustManager which makes the attack vector harder to exploit. Users are recommended to upgrade to version 3.8.6 or 3.9.5, which fixes this issue by introducing a new configuration option to disable reverse DNS lookup in client and quorum protocols.
総合評価: CVE-2026-24281 は中リスク(45.7/100)。CVSS 深刻度は高。悪用される可能性が高い(EPSS 0.62%、45 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 | 2026-06-30 | 0.31% | 0.62% | +0.31% |
| 2 | 2026-06-15 | 0.00% | 0.31% | +0.30% |
| 3 | 2026-03-07 | — | 0.00% | — |
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 |
|---|---|---|---|---|---|---|
| 7.4 | 3.1 | HIGH |
|
2.2 | 5.2 | [email protected] |
| 5.9 | 3.1 | MEDIUM |
|
2.2 | 3.6 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
| 7.4 | 3.1 | HIGH |
|
2.2 | 5.2 | 0b0ca135-0b70-47e7-9f44-1890c2a1c46c |
GHSA-7xrh-hqfc-g7qr · 深刻度: high · エコシステム: maven — Apache ZooKeeper: Reverse-DNS fallback enables hostname verification bypass in ZooKeeper ZKTrustManager
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2026-24281 not yet assigned priority: Debian including 1 source packages (zookeeper), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): open 3, resolved 2. | https://security-tracker.debian.org/tracker/CVE-2026-24281 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2026-24281 |
ubuntu
|
medium | CVE-2026-24281 medium priority: Ubuntu including 1 source packages (zookeeper), 8 status rows across 8 suites (bionic, focal, jammy, noble, questing, trusty, upstream, xenial): needs-triage 8. | https://ubuntu.com/security/CVE-2026-24281 |