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CVE-2026-119280— MariaDB Connector/J : XA recover() trusted server-supplied gtrid and bqual lengths

Quick assessment

Affected
mariadb-corporation mariadb-connector-j
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

MariaDB Connector/J 是用于将 Java 开发的应用程序连接到 MariaDB 和 MySQL 数据库的驱动程序。在 3.0.0 至 3.3.7、3.4.5 和 3.5.11 版本中， 和 的实现信任了 返回的 和 列。这些方法在分配和拆分 Xid 字节数组时，未将长度与 、 或实际数据载荷进行验证。恶意或被攻陷的服务器，或中间人攻击者，可利用此漏洞在 XA 恢复过程中触发大内存分配、 或 。该问题已在 3.3.7、3.4.5 和 3.5.11 版本中修复。

CVSS 3.7 · Low

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-119280

Vulnerability Information
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Vulnerability Title
MariaDB Connector/J : XA recover() trusted server-supplied gtrid and bqual lengths
Source: CVE Program / CVE List V5
Vulnerability 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 3.5.11, the MariaDbPoolConnection.recover() and MariaDbPoolPinnedConnection.recover() implementations trusted the gtrid_length and bqual_length columns returned by XA RECOVER. The methods allocated and split Xid byte arrays without validating the lengths against Xid.MAXGTRIDSIZE, Xid.MAXBQUALSIZE, or the actual data payload. A malicious or compromised server, or a machine-in-the-middle attacker, could cause large allocations, NegativeArraySizeException, or ArrayIndexOutOfBoundsException during XA recovery. This issue is fixed in versions 3.3.7, 3.4.5, and 3.5.11.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
mariadb-corporation mariadb-connector-j >= 3.0.0, < 3.3.7 -

II. Public POCs for CVE-2026-119280

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III. Intelligence Information for CVE-2026-119280

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Other References for CVE-2026-119280 (7)

Same Patch Batch · mariadb-corporation · 2026-10-29 · 7 CVEs total

CVE-2026-119210 5.9 MEDIUM MariaDB Connector/J: LOAD DATA LOCAL INFILE file check could be satisfied by text inside q
CVE-2026-119281 5.9 MEDIUM MariaDB Connector/J: Server could switch character_set_results away from UTF-8 without the
CVE-2026-119276 5.9 MEDIUM MariaDB Connector/J: Rogue server can drive large heap allocations from server-declared le
CVE-2026-119279 5.9 MEDIUM MariaDB Connector/J: Length-encoded integers larger than Integer.MAX_VALUE were truncated
CVE-2026-119277 5.9 MEDIUM MariaDB Connector/J: Rogue server can make the client read past the packet through server-
CVE-2026-119278 5.9 MEDIUM MariaDB Connector/J: Rogue server can crash the client during caching_sha2_password authen

IV. Related Vulnerabilities

Same product: mariadb-connector-j
Same vendor: mariadb-corporation
Same weakness: CWE-20