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{"affected": [{"affectedData": [{"product": "server", "vendor": "MariaDB", "versions": [{"status": "affected", "version": ">= 10.6.1, < 10.6.28"}, {"status": "affected", "version": ">= 10.11.1, < 10.11.19"}, {"status": "affected", "version": ">= 11.4.1, < 11.4.13"}, {"status": "affected", "version": ">= 11.8.1, < 11.8.9"}, {"status": "affected", "version": ">= 12.3.1, < 12.3.3"}, {"status": "affected", "version": ">= 13.0.1, < 13.0.2"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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."}], "id": "CVE-2026-85746", "lastModified": "2026-10-16T17:17:51.167", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.9, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.1, "impactScore": 6.0, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-10-16T17:17:51.167", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/MariaDB/server/commit/5c04ca5524385356ff7cf84974a7d491974c1f85"}, {"source": "security-advisories@github.com", "url": "https://github.com/MariaDB/server/releases/tag/mariadb-10.11.19"}, {"source": "security-advisories@github.com", "url": "https://github.com/MariaDB/server/releases/tag/mariadb-10.6.28"}, {"source": "security-advisories@github.com", "url": "https://github.com/MariaDB/server/releases/tag/mariadb-11.4.13"}, {"source": "security-advisories@github.com", "url": "https://github.com/MariaDB/server/releases/tag/mariadb-11.8.9"}, {"source": "security-advisories@github.com", "url": "https://github.com/MariaDB/server/releases/tag/mariadb-12.3.3"}, {"source": "security-advisories@github.com", "url": "https://github.com/MariaDB/server/releases/tag/mariadb-13.0.2"}, {"source": "security-advisories@github.com", "url": "https://github.com/MariaDB/server/security/advisories/GHSA-8fvj-c57c-pggx"}, {"source": "security-advisories@github.com", "url": "https://jira.mariadb.org/browse/MDEV-40329"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-787"}], "source": "security-advisories@github.com", "type": "Primary"}]}

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