CVE-2026-85748
MariaDB: Use-after-free with a large number of SYS_REFCURSOR's
- Published
- Oct 16, 2026
- Updated
- Oct 16, 2026
- Assigning CNA
- GitHub_M
- Evidence observed
- Nov 4, 2026
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:HLow · next 30 days
- Percentile
- 67.8%
- Model date
- Nov 4, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
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.
Sources
PoC for CVE-2026-92262, CVE-2026-85746, CVE-2026-85748 against MariaDB 13.0.1
Responsible use
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