Insufficient quoting in MariaDB mariadb-dump and SHOW commands
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- Required
- Attack complexity
- High
- Impact type
- SQL injection
- Confidentiality · integrity · availability
- None · High · High
- Fix status
- Partial Red Hat: 1 fixed, 5 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-89.
Summary
MariaDB server from 10.6.1 before 10.6.28, from 10.11.1 before 10.11.19, from 11.4.1 before 11.4.13, from 11.8.1 before 11.8.9, from 12.3.1 before 12.3.3 and from 13.0.1 before 13.0.2 is affected. SHOW CREATE SERVER, SHOW CREATE USER and mariadb-dump do not consistently quote identifiers and values, causing SQL injection (CWE-89). A low-privileged attacker who creates an object with crafted identifiers or values can inject SQL into output that is later applied.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Description from the CNA
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, SHOW CREATE SERVER, SHOW CREATE USER, and mariadb-dump are affected because each does not consistently quote identifiers and values when serializing SQL. A low-privileged attacker can trigger the issue when an attacker-created object with crafted identifiers or values is included in SHOW output or a dump, then create an object with crafted identifiers or values so generated SQL contains injected statements and execute attacker-injected SQL when the poisoned output is applied. 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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| MariaDB | server | 10.6.1 to before 10.6.28; 10.11.1 to before 10.11.19; 11.4.1 to before 11.4.13; 11.8.1 to before 11.8.9; 12.3.1 to before 12.3.3; 13.0.1 to before 13.0.2 | 10.6.28, 10.11.19, 11.4.13, 11.8.9, 12.3.3, 13.0.2 | Patch available | CNA |
- server VendorMariaDB Affected 10.6.1 to before 10.6.28; 10.11.1 to before 10.11.19; 11.4.1 to before 11.4.13; 11.8.1 to before 11.8.9; 12.3.1 to before 12.3.3; 13.0.1 to before 13.0.2 Fixed in 10.6.28, 10.11.19, 11.4.13, 11.8.9, 12.3.3, 13.0.2 Patch available CNA
CPE configurations NVD · 2
Remediation
Upgrade MariaDB server to 10.6.28, 10.11.19, 11.4.13, 11.8.9, 12.3.3 or 13.0.2. Red Hat Hardened Images are fixed by RHSA-2026:84701 and RHSA-2026:84689. Red Hat lists Red Hat Enterprise Linux 10, 7, 8, 9 and Red Hat OpenStack Platform 13 (Queens) as affected, with no fix available.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
- Fix · CNA server (MariaDB) Fixed in 10.6.28, 10.11.19, 11.4.13, 11.8.9, 12.3.3, 13.0.2
Red Hat 2 advisories
- RHSA-2026:84701 Released 2026-10-19 · Red Hat rating ImportantRed Hat Hardened Images RPMs Security Update
- Red Hat Hardened Images mariadb10.11-10.11.18-4.1.1.hum1@aarch64, mariadb10.11-10.11.18-4.1.1.hum1@s390x, mariadb10.11-10.11.18-4.1.1.hum1@src +47
- RHSA-2026:84689 Released 2026-10-19 · Red Hat rating ImportantRed Hat Hardened Images RPMs bug fix and enhancement update
- Red Hat Hardened Images mariadb11.8-3:11.8.9-0.1.hum1@aarch64, mariadb11.8-3:11.8.9-0.1.hum1@s390x, mariadb11.8-3:11.8.9-0.1.hum1@src +47
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 10 | Affected | No fix yet |
| Red Hat Enterprise Linux 7 | Affected | No fix yet |
| Red Hat Enterprise Linux 8 | Affected | No fix yet |
| Red Hat Enterprise Linux 9 | Affected | No fix yet |
| Red Hat OpenStack Platform 13 (Queens) | Affected | No fix yet |
| Red Hat Hardened Images | Fixed | RHSA-2026:84689, RHSA-2026:84701 |
Timeline
- 2026-10-16 Threatist record created from CVE-2026-86047
- 2026-10-18 Affected versions changed · Red Hat
- 2026-10-18 CVSS score added · Red Hat
- 2026-10-18 Priority changed: MEDIUM → LOW
- 2026-10-19 Fix available: RHSA-2026:84701 · Red Hat
- 2026-10-19 CISA SSVC decision points changed
- 2026-10-20 Fix available: RHSA-2026:84689 · Red Hat
- 2026-10-20 Fix available: Red Hat Hardened Images · Red Hat
- 2026-10-27 EPSS moved to the 50th–90th percentile
References
Patch 5
- https://github.com/MariaDB/server/commit/2b28d1c424104429eeed43115ee6d8a803671d52
- https://github.com/MariaDB/server/commit/3646569225758c8225e7342783d775ef7c7570e5
- https://github.com/MariaDB/server/commit/5acb43522863c9bd6b91f354104ea247bf513e9a
- https://github.com/MariaDB/server/commit/9d4ffe23b25808f7858b2dc48106fbd60cf0e513
- https://github.com/MariaDB/server/commit/d5d741a3076f911b468518d6b06a917593498c5b
Other 11
- 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-39776
- https://jira.mariadb.org/browse/MDEV-39818
- https://jira.mariadb.org/browse/MDEV-40308
- https://jira.mariadb.org/browse/MDEV-40311
- https://jira.mariadb.org/browse/MDEV-40312
More Mariadb vulnerabilities
- TI-2023-11776 MariaDB v10.5 was discovered to contain a remote code execution (RCE) vulnerability via… CVSS 3.1CRITICAL 9.8
- TI-2016-05707 Oracle MySQL through 5.5.52, 5.6.x through 5.6.33, and 5.7.x through 5.7.15; MariaDB… CVSS 3.0CRITICAL 9.8
- TI-2022-00687 Infinite loop in BN_mod_sqrt() reachable when parsing certificates CVSS 3.1HIGH 7.5
- TI-2014-00217 OpenSSL before 0.9.8za, 1.0.0 before 1.0.0m, and 1.0.1 before 1.0.1h does not properly… CVSS 3.1HIGH 7.4
- TI-2014-00188 The dtls1_reassemble_fragment function in d1_both.c in OpenSSL before 0.9.8za, 1.0.0… CVSS 2.0MEDIUM 6.8
- TI-2018-15259 zlib before 1.2.12 allows memory corruption when deflating (i.e., when compressing) if… CVSS 3.1HIGH 7.5
Sources
- CVE-2026-86047 · CVE Program
- CVE-2026-86047 · NVD
- FIRST EPSS
- CVE-2026-86047 · Red Hat security data · CC BY 4.0
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