{"document":{"category":"csaf_vex","csaf_version":"2.0","title":"CVE-2026-44172: MariaDB: mysql_real_escape_string() incorrectly handled big5","publisher":{"category":"vendor","name":"HarborGuard Database","namespace":"https://database.harborguard.co"},"tracking":{"id":"CVE-2026-44172","status":"final","version":"1","initial_release_date":"2026-06-12T17:34:04.487Z","current_release_date":"2026-06-30T03:17:44.288Z","revision_history":[{"date":"2026-06-12T17:34:04.487Z","number":"1","summary":"Initial machine-readable export from HarborGuard."}]},"distribution":{"tlp":{"label":"WHITE"},"text":"Public CVE data; freely redistributable."},"notes":[{"category":"description","text":"MariaDB server is a community developed fork of MySQL server. In versions 3.3.18 and 3.4.8, an application that was taking non-validated user input, escaping it with mysql_real_escape_string() and sending it to the database using text protocol and big5 character set was vulnerable to SQL injections, even though mysql_real_escape_string() was supposed to prevent them. This issue has been patched in versions 3.3.19 and 3.4.9.","title":"CVE description"}],"references":[{"category":"self","summary":"CVE-2026-44172 on HarborGuard Database","url":"https://database.harborguard.co/cve/CVE-2026-44172"},{"category":"external","summary":"CVE Record","url":"https://www.cve.org/CVERecord?id=CVE-2026-44172"},{"category":"external","summary":"https://github.com/MariaDB/server/security/advisories/GHSA-pv9p-5w55-55jm","url":"https://github.com/MariaDB/server/security/advisories/GHSA-pv9p-5w55-55jm"},{"category":"external","summary":"https://jira.mariadb.org/browse/CONC-819","url":"https://jira.mariadb.org/browse/CONC-819"}]},"product_tree":{"branches":[{"category":"vendor","name":"MariaDB","branches":[{"category":"product_name","name":"server","branches":[{"category":"product_version","name":"= 3.3.18","product":{"name":"MariaDB server = 3.3.18","product_id":"CSAFPID-1","product_identification_helper":{"cpe":"cpe:2.3:a:mariadb:server:*:*:*:*:*:*:*:*"}}},{"category":"product_version","name":"= 3.4.8","product":{"name":"MariaDB server = 3.4.8","product_id":"CSAFPID-2","product_identification_helper":{"cpe":"cpe:2.3:a:mariadb:server:*:*:*:*:*:*:*:*"}}}]}]}]},"vulnerabilities":[{"cve":"CVE-2026-44172","title":"MariaDB: mysql_real_escape_string() incorrectly handled big5","notes":[{"category":"description","text":"MariaDB server is a community developed fork of MySQL server. In versions 3.3.18 and 3.4.8, an application that was taking non-validated user input, escaping it with mysql_real_escape_string() and sending it to the database using text protocol and big5 character set was vulnerable to SQL injections, even though mysql_real_escape_string() was supposed to prevent them. This issue has been patched in versions 3.3.19 and 3.4.9.","title":"CVE description"}],"product_status":{"known_affected":["CSAFPID-1","CSAFPID-2"]},"scores":[{"cvss_v3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","baseScore":9.1,"baseSeverity":"CRITICAL"},"products":["CSAFPID-1","CSAFPID-2"]}],"remediations":[{"category":"none_available","details":"No fixed version is published yet. Monitor the upstream advisory.","product_ids":["CSAFPID-1","CSAFPID-2"]}]}]}