Description
MariaDB server is a community developed fork of MySQL server. From 10.6.1 until 10.6.28, 10.11.19, 11.4.13, 11.8.9, 12.3.3, and 13.0.2, the qc_info plugin could be confused by a query containing embedded null bytes. Reading information_schema.query_cache_info after such a query was cached could access data beyond the end of a heap-allocated buffer, potentially disclosing adjacent memory or crashing the server. This issue is fixed in versions 10.6.28, 10.11.19, 11.4.13, 11.8.9, 12.3.3, and 13.0.2.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| MariaDB | server | >= 10.6.1, < 10.6.28, >= 10.11.1, < 10.11.19, >= 11.4.1, < 11.4.13, >= 11.8.1, < 11.8.9, >= 12.3.1, < 12.3.3, >= 13.0.1, < 13.0.2 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | mariadb | 1:11.8.9+ds-1 | — |
| Debian 13 | mariadb | No fix yet | — |
| Debian 12 | mariadb | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | mariadb | No fix yet | — |
| Ubuntu 26.04 LTS | mariadb | No fix yet | — |
| Ubuntu 24.04 LTS | mariadb | No fix yet | — |
| Ubuntu 22.04 LTS | mariadb-10.6 | No fix yet | — |
| Ubuntu 20.04 LTS | mariadb-10.3 | No fix yet | — |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | mariadb-10.1 | No fix yet | — |
| Ubuntu 16.04 LTS | mariadb-10.0 | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Hardened Images 1 | mariadb10.11 +19 | 10.11.18-4.1.hum1 | RHSA-2026:83108 |
| Red Hat Hardened Images 1 | mariadb11.8 +20 | 3:11.8.9-0.1.hum1 | RHSA-2026:84689 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | mariadb | 12.3.2-3.1 | openSUSE-SU-2026:12245-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | mariadb1011 +15 | 3:10.11.19-1.amzn2023.0.1 | ALAS2023-2026-3308 |
| Amazon Linux 2023 | mariadb114 +15 | 3:11.4.13-1.amzn2023.0.1 | ALAS2023-2026-3309 |
| Amazon Linux 2023 | mariadb118 +15 | 3:11.8.9-1.amzn2023.0.1 | ALAS2023-2026-3310 |
| Amazon Linux 2023 | mariadb123 +15 | 3:12.3.3-2.amzn2023.0.1 | ALAS2023-2026-3311 |
Advisories 8
- RHSA-2026:84689 Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update Red Hat Security Advisories (RHSA) · Nov 13, 2026
- ALAS2023-2026-3311 Important: mariadb123 security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Nov 11, 2026
- ALAS2023-2026-3308 Important: mariadb1011 security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Nov 11, 2026
- ALAS2023-2026-3309 Important: mariadb114 security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Nov 11, 2026
- ALAS2023-2026-3310 Important: mariadb118 security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Nov 11, 2026
- WID-SEC-2026-3856 MariaDB: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 8, 2026
- openSUSE-SU-2026:12245-1 libmariadbd-devel-12.3.2-3.1 on GA media SUSE / openSUSE Security Updates · Oct 24, 2026
- RHSA-2026:83108 Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update Red Hat Security Advisories (RHSA) · Oct 20, 2026
References
- https://github.com/MariaDB/server/security/advisories/GHSA-wfqg-88r5-55f6
- https://github.com/MariaDB/server/commit/0931994096b84ecc9ffc8eb3517c7e09e6e8631e
- https://github.com/MariaDB/server/releases/tag/mariadb-10.11.19
- https://github.com/MariaDB/server/releases/tag/mariadb-10.6.28
- https://github.com/MariaDB/server/releases/tag/mariadb-11.4.13
- https://github.com/MariaDB/server/releases/tag/mariadb-11.8.9
- https://github.com/MariaDB/server/releases/tag/mariadb-12.3.3
- https://github.com/MariaDB/server/releases/tag/mariadb-13.0.2
- https://jira.mariadb.org/browse/MDEV-40670