Valkey is a distributed key-value database. Prior to versions 9.0.2, 8.1.6, 8.0.7, and 7.2.12, a malicious actor with access to the Valkey clusterbus port can send an invalid packet that may cause an out bound read, which might result in the system crashing. The Valkey clusterbus packet processing code does not validate that a clusterbus ping extension packet is located within buffer of the clusterbus packet before attempting to read it. Versions 9.0.2, 8.1.6, 8.0.7, and 7.2.12 fix the issue. As an additional mitigation, don't expose the cluster bus connection directly to end users, and protect the connection with its own network ACLs.
総合評価: CVE-2026-21863 は中リスク(44.8/100)。CVSS 深刻度は高。悪用される可能性が高い(EPSS 0.55%、42 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 | 0.39% | 0.55% | +0.16% |
| 2 | 2026-06-15 | 0.01% | 0.39% | +0.37% |
| 3 | 2026-02-24 | — | 0.01% | — |
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 |
|---|---|---|---|---|---|---|
| 7.5 | 3.1 | HIGH |
|
3.9 | 3.6 | [email protected] |
| 7.5 | 3.1 | HIGH |
|
3.9 | 3.6 | 0b0ca135-0b70-47e7-9f44-1890c2a1c46c |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
— | CVE-2026-21863: 1 source package rows (valkey); 30 state rows across 5 repos (3.20-main, 3.21-main, 3.22-main, 3.23-main, edge-main); fixed 4, open 26. | https://security.alpinelinux.org/vuln/CVE-2026-21863 |
debian
|
unimportant | CVE-2026-21863 unimportant priority: Debian including 3 source packages (redict, redis, valkey), 10 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 10. | https://security-tracker.debian.org/tracker/CVE-2026-21863 |
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2026-21863 |
suse
|
medium | CVE-2026-21863 severity moderate: SUSE including 9 source package names (valkey-8.0.7-150600.13.20.1, valkey-8.0.7-150700.3.14.1, …), 9 product×package rows across 3 product lines (SUSE Linux Enterprise Module for Server Applications 15 SP7, openSUSE Leap 15.6, openSUSE Tumbleweed): Fixed 6, First Fixed 3. | https://www.suse.com/security/cve/CVE-2026-21863/ |
ubuntu
|
medium | CVE-2026-21863 medium priority: Ubuntu including 1 source packages (valkey), 4 status rows across 4 suites (jammy, noble, questing, upstream): released 2, DNE 1, needs-triage 1. | https://ubuntu.com/security/CVE-2026-21863 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| lfprojects | valkey | < 7.2.12 | cpe:2.3:a:lfprojects:valkey:*:*:*:*:*:*:*:* |
| lfprojects | valkey | >= 8.0.0, < 8.0.7 | cpe:2.3:a:lfprojects:valkey:*:*:*:*:*:*:*:* |
| lfprojects | valkey | >= 8.1.0, < 8.1.6 | cpe:2.3:a:lfprojects:valkey:*:*:*:*:*:*:*:* |
| lfprojects | valkey | >= 9.0.0, < 9.0.2 | cpe:2.3:a:lfprojects:valkey:*:*:*:*:*:*:*:* |