{"id":"CVE-2026-85745","title":"MariaDB: Out-of-bound buffer read on in `ST_Area` of a multipolygon.","summary":"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_Area reads beyond the allocated buffer when processing invalid WKB for a MultiPolygon because the …","severity":"medium","cvss":4.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","cvssSource":"cna","cwe":["CWE-126","CWE-125"],"vendor":"MariaDB","product":"server","affected":["server >= 10.6.1, < 10.6.28","server >= 10.11.1, < 10.11.19","server >= 11.4.1, < 11.4.13","server >= 11.8.1, < 11.8.9","server >= 12.3.1, < 12.3.3","server >= 13.0.1, < 13.0.2"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-19T12:38:54.237600Z"},"published":"2026-10-16","updated":"2026-10-19","sourceUpdated":"2026-10-19T12:39:16.848Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-85745","references":[{"url":"https://github.com/MariaDB/server/security/advisories/GHSA-p7v9-24h4-mch8","label":"https://github.com/MariaDB/server/security/advisories/GHSA-p7v9-24h4-mch8"},{"url":"https://github.com/MariaDB/server/commit/2bf355e361db85153fdfba7b8a0f0d114d6a26ce","label":"https://github.com/MariaDB/server/commit/2bf355e361db85153fdfba7b8a0f0d114d6a26ce"},{"url":"https://github.com/MariaDB/server/releases/tag/mariadb-10.11.19","label":"https://github.com/MariaDB/server/releases/tag/mariadb-10.11.19"},{"url":"https://github.com/MariaDB/server/releases/tag/mariadb-10.6.28","label":"https://github.com/MariaDB/server/releases/tag/mariadb-10.6.28"},{"url":"https://github.com/MariaDB/server/releases/tag/mariadb-11.4.13","label":"https://github.com/MariaDB/server/releases/tag/mariadb-11.4.13"},{"url":"https://github.com/MariaDB/server/releases/tag/mariadb-11.8.9","label":"https://github.com/MariaDB/server/releases/tag/mariadb-11.8.9"},{"url":"https://github.com/MariaDB/server/releases/tag/mariadb-12.3.3","label":"https://github.com/MariaDB/server/releases/tag/mariadb-12.3.3"},{"url":"https://github.com/MariaDB/server/releases/tag/mariadb-13.0.2","label":"https://github.com/MariaDB/server/releases/tag/mariadb-13.0.2"},{"url":"https://jira.mariadb.org/browse/MDEV-40328","label":"https://jira.mariadb.org/browse/MDEV-40328"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-85745.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-85745"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2553280"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-85745"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-85745"},{"url":"https://hackerone.com/reports/3856148"},{"url":"https://access.redhat.com/errata/RHSA-2026:84701"}],"tags":["cve.org","csaf","vex","red-hat"],"epss":0.00534,"epssPercentile":0.4488,"patched":["hardened_images"],"ingestedAt":"2026-10-16T17:24:46.889Z","slug":"CVE-2026-85745","body":"## Overview\n\nMariaDB 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_Area reads beyond the allocated buffer when processing invalid WKB for a MultiPolygon because the multi-polygon parser advances past a nested geometry header without first verifying enough input remains. A low-privileged remote attacker can supply malformed spatial data to disclose memory useful for bypassing ASLR as part of a multi-vulnerability chain. 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.\n\n## Affected\n\n- `server >= 10.6.1, < 10.6.28`\n- `server >= 10.11.1, < 10.11.19`\n- `server >= 11.4.1, < 11.4.13`\n- `server >= 11.8.1, < 11.8.9`\n- `server >= 12.3.1, < 12.3.3`\n- `server >= 13.0.1, < 13.0.2`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **RHSA-2026:84701** · Red Hat · fixed in: Red Hat Hardened Images · released 2026-10-19 · [advisory](https://access.redhat.com/errata/RHSA-2026:84701)\n- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat Hardened Images · no fix planned: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat Hardened Images · updated 2026-10-19 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-85745.json)","depth":"sunlit","depthScore":24,"depthScoreParts":{"impact":23.7,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}