CVE-2026-85748
criticalMariaDB server is a community developed fork of MySQL server.
Vendor / product: Mariadb — mariadb
MariaDB server is a community developed fork of MySQL server. From 12.3.1 until 12.3.3 and 13.0.2, SYS_REFCURSOR handling is affected because cursor-array reallocation can leave stale references in routine contexts. A low-privileged attacker can open a large number of SYS_REFCURSORs and then fetch one to trigger a use-after-free that can enable remote code execution when combined with another vulnerability. This issue is fixed in versions 12.3.3 and 13.0.2.
CVSS
9.9
9.9 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H Severity source: NVD CVSS v3.1 (security-advisories@github.com)
Timeline (UTC)
Published: 2026-10-16 17:17
Modified: 2026-10-20 15:32
NVD status: Analyzed
Last synced 1 day ago
Verified against the source API 2026-10-27 07:03 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
mariadb / mariadb ≥12.3.1 <12.3.3, 13.0.1
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
References
- https://github.com/MariaDB/server/commit/91156c3de58762196605150ab3f756fe952592d1 security-advisories@github.com
- https://github.com/MariaDB/server/commit/9b075b2cb53338f67e7230cc585e02d2d34514ed security-advisories@github.com
- https://github.com/MariaDB/server/releases/tag/mariadb-12.3.3 security-advisories@github.com
- https://github.com/MariaDB/server/releases/tag/mariadb-13.0.2 security-advisories@github.com
- https://github.com/MariaDB/server/security/advisories/GHSA-mv8g-9f7q-hprm security-advisories@github.com
- https://jira.mariadb.org/browse/MDEV-40396 security-advisories@github.com
- https://jira.mariadb.org/browse/MDEV-40639 security-advisories@github.com
Data sources
NVD CVE API 2.0 — fetched 2026-10-27 07:03 UTC · record ↗