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CVE-2026-85746

MariaDB: Out-of-bound buffer write on in `ST_AsText` of nested GeometryCollections PUBLISHED

Description (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, 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.

Affected (CNA)

Vendor / productVersions
MariaDB / serveraffected >= 10.6.1, < 10.6.28; affected >= 10.11.1, < 10.11.19; affected >= 11.4.1, < 11.4.13; affected >= 11.8.1, < 11.8.9; affected >= 12.3.1, < 12.3.3; affected >= 13.0.1, < 13.0.2

CWE

CWE-787

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.