Out-of-bounds Write Affecting mariadb10.11-s3-engine package, versions <3:10.11.18-4.1.2.hum1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-RHEL10-MARIADB1011S3ENGINE-21684359
- published24 Oct 2026
- disclosed16 Oct 2026
Introduced: 16 Oct 2026
NewCVE-2026-85746 (opens in a new tab)How to fix?
Upgrade RHEL:10 mariadb10.11-s3-engine to version 3:10.11.18-4.1.2.hum1 or higher.
This issue was patched in RHSA-2026:88864.
NVD Description
Note: Versions mentioned in the description apply only to the upstream mariadb10.11-s3-engine package and not the mariadb10.11-s3-engine package as distributed by RHEL.
See How to fix? for RHEL:10 relevant fixed versions and status.
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, ST_AsText can write beyond an allocated output buffer when converting deeply nested GeometryCollections because recursive WKT serialization does not account for bytes consumed or reserve sufficient space. A low-privileged remote attacker can submit a specially crafted GIS object to corrupt memory and potentially achieve code execution when combined with another vulnerability. 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.
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2554206
- https://access.redhat.com/security/cve/CVE-2026-85746
- https://access.redhat.com/errata/RHSA-2026:88864
- https://github.com/MariaDB/server/commit/5c04ca5524385356ff7cf84974a7d491974c1f85
- 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://github.com/MariaDB/server/security/advisories/GHSA-8fvj-c57c-pggx
- https://jira.mariadb.org/browse/MDEV-40329