{"cve":{"cve_id":"CVE-2026-85748","is_kev":false,"kev_date_added":null,"kev_vendor_project":null,"kev_product":null,"kev_vulnerability_name":null,"kev_short_description":null,"kev_required_action":null,"kev_due_date":null,"kev_known_ransomware":null,"kev_notes":null,"kev_cwes":null,"epss_score":null,"epss_percentile":null,"epss_as_of":null,"description":"MariaDB server is a community developed fork of MySQL server. From 12.3.1 until 12.3.3 and 13.0.2, SYS_REFCURSOR handling is affected because cursor-array reallocation can leave stale references in routine contexts. A low-privileged attacker can open a large number of SYS_REFCURSORs and then fetch one to trigger a use-after-free that can enable remote code execution when combined with another vulnerability. This issue is fixed in versions 12.3.3 and 13.0.2.","published_at":"2026-10-16T16:28:55.829000Z","last_modified_at":"2026-10-20T15:32:54.420000Z","cvss_v3_score":9.9,"cvss_v3_vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","cvss_v3_severity":"CRITICAL","cvss_v4_score":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":null,"ssvc_automatable":null,"ssvc_technical_impact":null,"cwes":["CWE-416"],"nvd_references":["https://github.com/MariaDB/server/security/advisories/GHSA-mv8g-9f7q-hprm","https://github.com/MariaDB/server/commit/91156c3de58762196605150ab3f756fe952592d1","https://github.com/MariaDB/server/commit/9b075b2cb53338f67e7230cc585e02d2d34514ed","https://github.com/MariaDB/server/releases/tag/mariadb-12.3.3","https://github.com/MariaDB/server/releases/tag/mariadb-13.0.2","https://jira.mariadb.org/browse/MDEV-40396","https://jira.mariadb.org/browse/MDEV-40639"],"vuln_status":"Analyzed","trending_score":null,"is_trending":false,"has_trended":false,"trended_number_one":false,"trending_peak_score":null,"trending_peak_rank":null,"started_trending_at":null,"trended_number_one_at":null,"summary_generated":null,"summary_generated_at":null,"summary_model":null,"created_at":"2026-10-16T21:02:21.118890Z","updated_at":"2026-10-24T01:34:46.178388Z"},"effective_severity":"CRITICAL","badges":[],"impact_analysis":[],"cvss_v3_decoded":{"version":"3.1","metrics":[{"metric":"AV","name":"Attack Vector","value":"N","value_label":"Network"},{"metric":"AC","name":"Attack Complexity","value":"L","value_label":"Low"},{"metric":"PR","name":"Privileges Required","value":"L","value_label":"Low"},{"metric":"UI","name":"User Interaction","value":"N","value_label":"None"},{"metric":"S","name":"Scope","value":"C","value_label":"Changed"},{"metric":"C","name":"Confidentiality","value":"H","value_label":"High"},{"metric":"I","name":"Integrity","value":"H","value_label":"High"},{"metric":"A","name":"Availability","value":"H","value_label":"High"}]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"mariadb","vendor_name":"MariaDB","product_slug":"mariadb","product_name":"MariaDB","version_start":"12.3.1","version_start_inclusive":true,"version_end":"12.3.3","version_end_inclusive":false,"cpe23_uri":"cpe:2.3:a:mariadb:mariadb:*:*:*:*:*:*:*:*"},{"vendor_slug":"mariadb","vendor_name":"MariaDB","product_slug":"mariadb","product_name":"MariaDB","version_start":"13.0.1","version_start_inclusive":true,"version_end":"13.0.1","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:a:mariadb:mariadb:13.0.1:*:*:*:*:*:*:*"},{"vendor_slug":"mariadb","vendor_name":"MariaDB","product_slug":"server","product_name":"server","version_start":">= 12.3.1, < 12.3.3","version_start_inclusive":true,"version_end":">= 12.3.1, < 12.3.3","version_end_inclusive":true,"cpe23_uri":"cve5:mariadb:server:>= 12.3.1, < 12.3.3:>= 12.3.1, < 12.3.3"},{"vendor_slug":"mariadb","vendor_name":"MariaDB","product_slug":"server","product_name":"server","version_start":">= 13.0.1, < 13.0.2","version_start_inclusive":true,"version_end":">= 13.0.1, < 13.0.2","version_end_inclusive":true,"cpe23_uri":"cve5:mariadb:server:>= 13.0.1, < 13.0.2:>= 13.0.1, < 13.0.2"}],"exploit_refs":[],"news":[],"references":[{"url":"https://github.com/MariaDB/server/security/advisories/GHSA-mv8g-9f7q-hprm","source_type":"VENDOR_ADVISORY","tags":["advisory"]},{"url":"https://github.com/MariaDB/server/commit/91156c3de58762196605150ab3f756fe952592d1","source_type":"PATCH","tags":["patch"]},{"url":"https://github.com/MariaDB/server/commit/9b075b2cb53338f67e7230cc585e02d2d34514ed","source_type":"PATCH","tags":["patch"]},{"url":"https://github.com/MariaDB/server/releases/tag/mariadb-12.3.3","source_type":"PATCH","tags":["patch"]},{"url":"https://github.com/MariaDB/server/releases/tag/mariadb-13.0.2","source_type":"PATCH","tags":["patch"]},{"url":"https://jira.mariadb.org/browse/MDEV-40396","source_type":"MISC","tags":[]},{"url":"https://jira.mariadb.org/browse/MDEV-40639","source_type":"MISC","tags":[]}],"timeline":[{"type":"published","at":"2026-10-16T16:28:55.829000Z","label":"CVE published","source":null}]}