{"id":"CVE-2026-119279","aliases":["DEBIAN-CVE-2026-119279","EUVD-2026-113386","GHSA-797x-p4mc-jwpm","UBUNTU-CVE-2026-119279","openSUSE-SU-2026:12401-1"],"status":"published","title":"MariaDB Connector/J: Length-encoded integers larger than Integer.MAX_VALUE were truncated before being used as lengths","description":"MariaDB Connector/J is used to connect applications developed in Java to MariaDB and MySQL databases. From 3.0.0 until 3.3.7, 3.4.5, and 3.5.10, the ReadableByteBuf.readLength() and ReadableByteBuf.readIntLengthEncodedNotNull() methods narrowed the protocol's unsigned 8-byte length-encoded integer to a Java int without checking that the value fit a non-negative integer. Values above Integer.MAX_VALUE could wrap to a negative or unrelated length that downstream allocation and read paths used. A malicious or compromised server, or a machine-in-the-middle attacker, could trigger NegativeArraySizeException, out-of-bounds failures, or oversized allocation behavior in client connection handling. This issue is fixed in versions 3.3.7, 3.4.5, and 3.5.10.","severity":{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00351,"percentile":0.2917,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-130","CWE-190"],"published":"2026-10-29T20:52:22Z","modified":"2026-11-05T07:59:51Z","fixes":[{"ecosystem":"Maven","package":"org.mariadb.jdbc:mariadb-java-client","fixed_in":["3.3.7","3.4.5","3.5.10"],"sources":["ghsa","osv"]},{"ecosystem":"Debian:14","package":"mariadb-connector-java","fixed_in":["3.5.10-1"],"sources":["osv"]}],"affected":[{"source":"ghsa","ecosystem":"Maven","package":"org.mariadb.jdbc:mariadb-java-client","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.0.0"},{"fixed":"3.3.7"}]}]},{"source":"ghsa","ecosystem":"Maven","package":"org.mariadb.jdbc:mariadb-java-client","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.4.0"},{"fixed":"3.4.5"}]}]},{"source":"ghsa","ecosystem":"Maven","package":"org.mariadb.jdbc:mariadb-java-client","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.5.0"},{"fixed":"3.5.10"}]}]},{"source":"osv","ecosystem":"Debian:12","package":"mariadb-connector-java","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.7.15-1","2.7.6-1","3.5.10-1"]},{"source":"osv","ecosystem":"Debian:13","package":"mariadb-connector-java","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.7.15-1","2.7.6-1","3.5.10-1"]},{"source":"osv","ecosystem":"Debian:14","package":"mariadb-connector-java","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.5.10-1"}]}],"versions":["2.7.15-1","2.7.6-1"]},{"source":"osv","ecosystem":"Maven","package":"org.mariadb.jdbc:mariadb-java-client","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.0.0"},{"fixed":"3.3.7"}]}],"versions":["3.0.1-beta","3.0.10","3.0.11","3.0.2-rc","3.0.3","3.0.4","3.0.5","3.0.6","3.0.7","3.0.8","3.0.9","3.1.0","3.1.1","3.1.2","3.1.3","3.1.4","3.2.0","3.3.0","3.3.1","3.3.2","3.3.3","3.3.4","3.3.5","3.3.6"]},{"source":"osv","ecosystem":"Maven","package":"org.mariadb.jdbc:mariadb-java-client","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.4.0"},{"fixed":"3.4.5"}]}],"versions":["3.4.0","3.4.1","3.4.2","3.4.3","3.4.4"]},{"source":"osv","ecosystem":"Maven","package":"org.mariadb.jdbc:mariadb-java-client","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.5.0"},{"fixed":"3.5.10"}]}],"versions":["3.5.0","3.5.1","3.5.2","3.5.3","3.5.4","3.5.5","3.5.6","3.5.7","3.5.8","3.5.9"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"mariadb-connector-java","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.3.0-1~18.04"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"mariadb-connector-java","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.4.2-1build2","2.5.3-1"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"mariadb-connector-java","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.7.2-1","2.7.4-1"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"mariadb-connector-java","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.7.6-1"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"mariadb-connector-java","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.7.6-1build1"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"mariadb-connector-java","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.7.6-1","2.7.6-1build1"]},{"source":"osv","ecosystem":"openSUSE:Tumbleweed","package":"mariadb-java-client","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.5.11-1.1"}]}],"bundled":7}],"products":[{"vendor":"mariadb-corporation","product":"mariadb-connector-j"}],"references":[{"url":"https://github.com/mariadb-corporation/mariadb-connector-j/security/advisories/GHSA-797x-p4mc-jwpm","tags":["x_refsource_CONFIRM","advisory","web","report"]},{"url":"https://github.com/mariadb-corporation/mariadb-connector-j/commit/30d4a883377a9b7762e02ee2c60d54567032ab99","tags":["x_refsource_MISC","fix","web","report"]},{"url":"https://github.com/mariadb-corporation/mariadb-connector-j/commit/bfd9f5ad666a6f7f5401a5b78f2ac2fbd6df8667","tags":["x_refsource_MISC","fix","web","report"]},{"url":"https://github.com/mariadb-corporation/mariadb-connector-j/commit/dbbadc3e215c47bdb913ddf50739ada09a7f23ea","tags":["x_refsource_MISC","fix","web","report"]},{"url":"https://github.com/mariadb-corporation/mariadb-connector-j/releases/tag/3.3.7","tags":["x_refsource_MISC","web","report"]},{"url":"https://github.com/mariadb-corporation/mariadb-connector-j/releases/tag/3.4.5","tags":["x_refsource_MISC","web","report"]},{"url":"https://github.com/mariadb-corporation/mariadb-connector-j/releases/tag/3.5.10","tags":["x_refsource_MISC","web","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-119279","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-797x-p4mc-jwpm"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/119xxx/CVE-2026-119279.json","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-119279","tags":["advisory"]},{"url":"https://github.com/mariadb-corporation/mariadb-connector-j","tags":["package"]},{"url":"https://ubuntu.com/security/CVE-2026-119279","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-119279","tags":["report"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2026-119210","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-119276","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-119277","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-119278","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-119279","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-119280","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-119281","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2026-119279","title":"MariaDB Connector/J: Length-encoded integers larger than Integer.MAX_VALUE were truncated before being used as lengths","description":"MariaDB Connector/J is used to connect applications developed in Java to MariaDB and MySQL databases. From 3.0.0 until 3.3.7, 3.4.5, and 3.5.10, the ReadableByteBuf.readLength() and ReadableByteBuf.readIntLengthEncodedNotNull() methods narrowed the protocol's unsigned 8-byte length-encoded integer to a Java int without checking that the value fit a non-negative integer. Values above Integer.MAX_VALUE could wrap to a negative or unrelated length that downstream allocation and read paths used. A malicious or compromised server, or a machine-in-the-middle attacker, could trigger NegativeArraySizeException, out-of-bounds failures, or oversized allocation behavior in client connection handling. This issue is fixed in versions 3.3.7, 3.4.5, and 3.5.10.","status":"published","published":"2026-10-29T20:52:22.903Z","modified":"2026-11-03T16:47:49.073Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna"}],"cwes":["CWE-130","CWE-190"],"updated_at":"2026-11-03T17:29:02.209656Z"}],"euvd":[{"id":"EUVD-2026-113386","description":"MariaDB Connector/J is used to connect applications developed in Java to MariaDB and MySQL databases. From 3.0.0 until 3.3.7, 3.4.5, and 3.5.10, the ReadableByteBuf.readLength() and ReadableByteBuf.readIntLengthEncodedNotNull() methods narrowed the protocol's unsigned 8-byte length-encoded integer to a Java int without checking that the value fit a non-negative integer. Values above Integer.MAX_VALUE could wrap to a negative or unrelated length that downstream allocation and read paths used. A malicious or compromised server, or a machine-in-the-middle attacker, could trigger NegativeArraySizeException, out-of-bounds failures, or oversized allocation behavior in client connection handling. This issue is fixed in versions 3.3.7, 3.4.5, and 3.5.10.","status":"published","published":"2026-10-29T20:52:22Z","modified":"2026-11-03T16:47:49Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-03T18:19:04.249016Z"}],"ghsa":[{"id":"GHSA-797x-p4mc-jwpm","title":"MariaDB Connector/J: Length-encoded integers larger than Integer.MAX_VALUE were truncated before being used as lengths","description":"## Summary\n\nMariaDB Connector/J narrowed 8-byte length-encoded integers received from the\nserver to `int` without validation. A rogue or MitM server can send a value above\n`Integer.MAX_VALUE` whose truncation becomes a negative or arbitrary length.\n\n## Details\n\nThe protocol encodes lengths as length-encoded integers, whose 8-byte form the\ndecoder (`readLength()` and `readIntLengthEncodedNotNull()`) returned as\n`(int) readLong()`. A value above `Integer.MAX_VALUE` therefore wrapped to a\nnegative or unrelated `int`, used afterwards as a length to size allocations or\nreads, which ended in `NegativeArraySizeException`, out-of-bounds exceptions or\noversized allocations.\n\nThe fix rejects any length-encoded value that does not fit a non-negative `int`\nwith an explicit error.\n\n## Impact\n\nAvailability only: a malicious or compromised server, or a MitM, can crash the\nclient's connection handling with unchecked exceptions or drive oversized\nallocations. Exploitation requires control of the server side of the connection;\nno authentication bypass, confidentiality or integrity impact.\n\n## Credit\n\nReported by fg0x0","status":"published","published":"2026-10-30T23:00:07Z","modified":"2026-10-30T23:00:08Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-130","CWE-190"],"updated_at":"2026-11-02T14:41:41.028239Z"}],"nvd":[{"id":"CVE-2026-119279","description":"MariaDB Connector/J is used to connect applications developed in Java to MariaDB and MySQL databases. From 3.0.0 until 3.3.7, 3.4.5, and 3.5.10, the ReadableByteBuf.readLength() and ReadableByteBuf.readIntLengthEncodedNotNull() methods narrowed the protocol's unsigned 8-byte length-encoded integer to a Java int without checking that the value fit a non-negative integer. Values above Integer.MAX_VALUE could wrap to a negative or unrelated length that downstream allocation and read paths used. A malicious or compromised server, or a machine-in-the-middle attacker, could trigger NegativeArraySizeException, out-of-bounds failures, or oversized allocation behavior in client connection handling. This issue is fixed in versions 3.3.7, 3.4.5, and 3.5.10.","status":"published","published":"2026-10-29T21:17:21.387Z","modified":"2026-11-03T17:18:05.513Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"secondary"}],"cwes":["CWE-130","CWE-190"],"updated_at":"2026-11-03T20:18:18.523956Z"}],"osv":[{"id":"CVE-2026-119279","title":"MariaDB Connector/J: Length-encoded integers larger than Integer.MAX_VALUE were truncated before being used as lengths","description":"MariaDB Connector/J is used to connect applications developed in Java to MariaDB and MySQL databases. From 3.0.0 until 3.3.7, 3.4.5, and 3.5.10, the ReadableByteBuf.readLength() and ReadableByteBuf.readIntLengthEncodedNotNull() methods narrowed the protocol's unsigned 8-byte length-encoded integer to a Java int without checking that the value fit a non-negative integer. Values above Integer.MAX_VALUE could wrap to a negative or unrelated length that downstream allocation and read paths used. A malicious or compromised server, or a machine-in-the-middle attacker, could trigger NegativeArraySizeException, out-of-bounds failures, or oversized allocation behavior in client connection handling. This issue is fixed in versions 3.3.7, 3.4.5, and 3.5.10.","status":"published","published":"2026-10-29T20:52:22.903Z","modified":"2026-11-05T07:59:51.735761991Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-130","CWE-190"],"updated_at":"2026-11-05T09:08:14.330889Z"},{"id":"DEBIAN-CVE-2026-119279","description":"MariaDB Connector/J is used to connect applications developed in Java to MariaDB and MySQL databases. From 3.0.0 until 3.3.7, 3.4.5, and 3.5.10, the ReadableByteBuf.readLength() and ReadableByteBuf.readIntLengthEncodedNotNull() methods narrowed the protocol's unsigned 8-byte length-encoded integer to a Java int without checking that the value fit a non-negative integer. Values above Integer.MAX_VALUE could wrap to a negative or unrelated length that downstream allocation and read paths used. A malicious or compromised server, or a machine-in-the-middle attacker, could trigger NegativeArraySizeException, out-of-bounds failures, or oversized allocation behavior in client connection handling. This issue is fixed in versions 3.3.7, 3.4.5, and 3.5.10.","status":"published","published":"2026-10-29T21:17:21.387Z","modified":"2026-11-04T09:47:22.534696895Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-04T10:05:57.467041Z"},{"id":"GHSA-797x-p4mc-jwpm","title":"MariaDB Connector/J: Length-encoded integers larger than Integer.MAX_VALUE were truncated before being used as lengths","description":"## Summary\n\nMariaDB Connector/J narrowed 8-byte length-encoded integers received from the\nserver to `int` without validation. A rogue or MitM server can send a value above\n`Integer.MAX_VALUE` whose truncation becomes a negative or arbitrary length.\n\n## Details\n\nThe protocol encodes lengths as length-encoded integers, whose 8-byte form the\ndecoder (`readLength()` and `readIntLengthEncodedNotNull()`) returned as\n`(int) readLong()`. A value above `Integer.MAX_VALUE` therefore wrapped to a\nnegative or unrelated `int`, used afterwards as a length to size allocations or\nreads, which ended in `NegativeArraySizeException`, out-of-bounds exceptions or\noversized allocations.\n\nThe fix rejects any length-encoded value that does not fit a non-negative `int`\nwith an explicit error.\n\n## Impact\n\nAvailability only: a malicious or compromised server, or a MitM, can crash the\nclient's connection handling with unchecked exceptions or drive oversized\nallocations. Exploitation requires control of the server side of the connection;\nno authentication bypass, confidentiality or integrity impact.\n\n## Credit\n\nReported by fg0x0","status":"published","published":"2026-10-30T23:00:07Z","modified":"2026-10-30T23:15:05.687493406Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-130","CWE-190"],"updated_at":"2026-11-02T15:46:40.657155Z"},{"id":"UBUNTU-CVE-2026-119279","description":"MariaDB Connector/J is used to connect applications developed in Java to MariaDB and MySQL databases. From 3.0.0 until 3.3.7, 3.4.5, and 3.5.10, the ReadableByteBuf.readLength() and ReadableByteBuf.readIntLengthEncodedNotNull() methods narrowed the protocol's unsigned 8-byte length-encoded integer to a Java int without checking that the value fit a non-negative integer. Values above Integer.MAX_VALUE could wrap to a negative or unrelated length that downstream allocation and read paths used. A malicious or compromised server, or a machine-in-the-middle attacker, could trigger NegativeArraySizeException, out-of-bounds failures, or oversized allocation behavior in client connection handling. This issue is fixed in versions 3.3.7, 3.4.5, and 3.5.10.","status":"published","published":"2026-10-29T21:17:00Z","modified":"2026-11-05T04:42:51Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-05T13:33:25.727744Z"},{"id":"openSUSE-SU-2026:12401-1","title":"mariadb-java-client-3.5.11-1.1 on GA media","description":"These are all security issues fixed in the mariadb-java-client-3.5.11-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2026-11-03T00:00:00Z","modified":"2026-11-04T17:23:21.433924059Z","updated_at":"2026-11-04T17:43:22.558805Z"}]}}