CVE-2026-85746High· 8.8▾ TwilightA flaw was found in MariaDB. An authenticated remote attacker with low privileges can cause memory corruption and potentially achieve arbitrary code execution by submitting specially crafted Geographic Information System (GIS) objects. Thi…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 48.4 · likelihood 0.2 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the vendor's CSAF advisory record, not NVD.
Exploit-prediction probability, daily snapshots since Oct 17.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CSAF
0.6%
critical → high
Last analysed / modified upstream
0.6% → 1.0%
9.9 → 8.8
A flaw was found in MariaDB. An authenticated remote attacker with low privileges can cause memory corruption and potentially achieve arbitrary code execution by submitting specially crafted Geographic Information System (GIS) objects. This issue is caused by an out-of-bounds write in the ST_AsText function, which fails to allocate sufficient buffer space during the conversion of deeply nested geometry collections.
mariadb: MariaDB: Out-of-bound buffer write on in ST_AsText of nested GeometryCollections — rated Important by Red Hat. Released 2026-10-16, updated 2026-10-26.
Affected:
Fixed:
No fix planned:
Not affected:
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://images.redhat.com/ https://access.redhat.com/errata/RHSA-2026:88864
Workarounds / mitigations:
Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
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