UpHeron
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Servers and applications

CVE-2026-85746

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…

Severity
Critical 9.9
Published
16 Oct 2026
Last changed
20 Oct 2026
Added to UpHeron
21 Oct 2026
Fixed in
10.6.28, 10.11.19, 11.4.13, 11.8.9, 12.3.3
Sources
NVD

Affected software

SoftwareAffected versions
MariaDBServers and applications · cpe:a:mariadb:mariadb
  • 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
  • Version 13.0.1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2026-85746
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2026-85746