Sign in Sign up
JA · EN · FR
SecPulse
← Back
CVE-2026-49261 critical CVSS 10.0

OS Command Injection in mariadb (CVE-2026-49261)

Summary

OS command injection in mariadb (CVE-2026-49261). Successful exploitation can lead to full system takeover. Exploitable via ``wsrep_notify_cmd``. Mitigation: upgrade to `10.6.27` or later.

AI summary snake-internal / snake-material-v2

A vulnerability tracked as **CVE-2026-49261** has been found in mariadb. Attackers can target a specific entry point like ``wsrep_notify_cmd`` over the network to misuse the product. Successful exploitation can lead to full system takeover. CVSS score: 10.0/10. What to do: upgrade mariadb to **10.6.27** or later. If unsure, ask your IT team or search "mariadb CVE-2026-49261" on the vendor's site.
CVE-2026-49261 (mariadb) — CWE-78 / CVSS v3 10.0 Attack vector: remote (network-reachable) / unauthenticated / no user interaction Attack surface: `wsrep_notify_cmd` Patched: `10.6.27` — apply immediately Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs. Refs: see the GHSA / vendor advisory / patched release linked on this page.
❓ What is the problem
**OS command injection** (CWE-78) exists in mariadb. Attackers reach the vulnerable code path via ``wsrep_notify_cmd`` without authentication.
📍 Affected scope
mariadb — . Attack surface: `wsrep_notify_cmd`.
🔥 Severity
Severity: Critical (CVSS 10.0/10). Successful exploitation can lead to full system takeover
🔧 How to fix
Update to **10.6.27**.
🛡️ Workaround
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
🔍 Detection
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run `grep -r 'mariadb' .` against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.

Response Actions (7 steps)

Concrete steps and command examples for SOC/SRE teams to execute in order

  1. 1
    Identify exposure identify 
    grep -r 'mariadb' . | grep -v node_modules

    リポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で `mariadb` を grep し、稼働しているサービス・バージョンを把握する。

  2. 6
    Apply patch patch 
    Upgrade mariadb to 10.6.27

    ステージング環境で 10.6.27 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスと、Step 3 で見つけた異常検知の続報チェックを含めること。

  3. 7
    Post-deployment verification verify 
    Confirm patched version is live in production

    パッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番では Step 3 と同じログクエリでアラート再発が無いか継続監視。

Affected packages

Bitnami mariadb
[{"type":"SEMVER","events":[{"introduced":"10.6.1"},{"fixed":"10.6.27"},{"introduced":"10.11.1"},{"fixed":"10.11.18"},{"introduced":"11.4.1"},{"fixed":"11.4.12"},{"introduced":"11.8.1"},{"fixed":"11.8.8"},{"introduced":"12.3.1"},{"fixed":"12.3.2"}]}]
Bitnami mariadb-min
[{"type":"SEMVER","events":[{"introduced":"10.6.1"},{"fixed":"10.6.27"},{"introduced":"10.11.1"},{"fixed":"10.11.18"},{"introduced":"11.4.1"},{"fixed":"11.4.12"},{"introduced":"11.8.1"},{"fixed":"11.8.8"},{"introduced":"12.3.1"},{"fixed":"12.3.2"}]}]
Bitnami mysql-client
[{"type":"SEMVER","events":[{"introduced":"10.6.1"},{"fixed":"10.6.27"},{"introduced":"10.11.1"},{"fixed":"10.11.18"},{"introduced":"11.4.1"},{"fixed":"11.4.12"},{"introduced":"11.8.1"},{"fixed":"11.8.8"},{"introduced":"12.3.1"},{"fixed":"12.3.2"}]}]

References

🍪 About cookies

We use cookies to keep you logged in, remember your language, and improve the service.

Details →