CVE-2026-61700: MariaDB Connector/J allowLocalInfile bypass in LOCAL INFILE processing

CVE-2026-61700 · Severity: low · CVSS 3.7 · Published 2026-09-17

MariaDB Connector/J is a Java database driver used by applications to connect to MariaDB databases. The connector has a security setting called `allowLocalInfile=false` intended to prevent applications from loading local files from the client into the database. However, a rogue or man-in-the-middle server can trick the connector into bypassing this protection and exposing file contents. The impact is limited to files that the application itself intended to load, but the security guarantee of the safety flag is undermined.

Technologies: org.mariadb.jdbc:mariadb-java-client (Maven). Vendors: Maven.

Quick answers

Is CVE-2026-61700 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-61700 being exploited in the wild.
How severe is CVE-2026-61700?
Low severity, with a CVSS score of 3.7, published 17 September 2026.
Which products and versions are affected?
org.mariadb.jdbc:mariadb-java-client (Maven) ECOSYSTEM:introduced=0,fixed=2.7.14.
Is there a fix for CVE-2026-61700?
Yes. org.mariadb.jdbc:mariadb-java-client (Maven): upgrade to 2.7.14 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-61700 attacked?
It is attacked over the network, in a software library.
Am I affected by CVE-2026-61700?
Check whether you run org.mariadb.jdbc:mariadb-java-client (Maven) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • org.mariadb.jdbc:mariadb-java-client (Maven): upgrade to 2.7.14 or later
    # set org.mariadb.jdbc:mariadb-java-client to 2.7.14 in your pom.xml or build.gradle

Technical details

The vulnerability is an improper access control flaw (CWE-284) in how MariaDB Connector/J handles the `allowLocalInfile` security flag during LOCAL INFILE operations. When a client executes `LOAD DATA LOCAL INFILE '/path/to/file'`, the connector transmits the filename to the server. A malicious or compromised server responds with a protocol packet (type 0xfb) echoing that filename, and the connector reads and transmits the file content without checking the `allowLocalInfile=false` setting. Attack vector is network-based and requires high attack complexity (a rogue/MitM server must be in place). The bypass is constrained: an attacker cannot redirect to arbitrary files like `/etc/passwd` unless the application's own query targets them. Patches are available in versions 2.7.14, 3.3.5, 3.4.3, and 3.5.9.

Affected products

  • MariaDB Corporation Connector/J < 2.7.14; >= 3.0.0 < 3.3.5; >= 3.4.0 < 3.4.3; >= 3.5.0 < 3.5.9

Identifiers

  • CVE-2026-61700
  • GHSA-wxmm-q36w-r9xj

Timeline

  • 2026-07-10: disclosed: Published to GitHub Advisory Database
  • 2026-09-17: patched: Patched versions released: 2.7.14, 3.3.5, 3.4.3, 3.5.9

References

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