Vulnerability in mariadb
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as DEBIAN-CVE-2026-34303 has been found in mariadb.
Risk of unauthorized operations or information disclosure.
What to do: upgrade mariadb to 1:10.11.18-0+deb12u1 or later.
If unsure, ask your IT team or search "mariadb DEBIAN-CVE-2026-34303" on the vendor's site.
DEBIAN-CVE-2026-34303 (mariadb)
Attack vector: remote (network-reachable) / no user interaction
Patched: 1:10.11.18-0+deb12u1 — 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.
A vulnerability (unclassified) exists in mariadb.
Check the vendor advisory for the affected versions of mariadb.
Severity: ?. Risk of unauthorized operations or information disclosure.
Update to 1:10.11.18-0+deb12u1.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
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
Concrete steps and command examples for SOC/SRE teams to execute in order
-
1
Identify exposureidentify
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
Apply patchpatch
Upgrade mariadb to 1:10.11.18-0+deb12u1ステージング環境で 1:10.11.18-0+deb12u1 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を含めること。
-
3
Post-deployment verificationverify
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。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
Affected packages
| Ecosystem | Package | Affected | Fixed |
|---|---|---|---|
| Debian:12 | mariadb |
< 1:10.11.18-0+deb12u1 |
1:10.11.18-0+deb12u1 |
| Debian:13 | mariadb |
< 1:11.8.6-0+deb13u1 |
1:11.8.6-0+deb13u1 |
| Debian:14 | mariadb |
< 1:11.8.6-1 |
1:11.8.6-1 |
Original description The description as published by the source.
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.0-8.0.45, 8.4.0-8.4.8 and 9.0.0-9.6.0. Easily exploitable vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.1 Base Score 6.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).
Source: OSV.dev (Open Source Vulnerabilities) OSV
References
- advisory security-tracker.debian.org