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Response snapshot Oct 31, 2026, 01:26 UTC

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VulnerabilityCVE-2026-119210

MariaDB Connector/J: LOAD DATA LOCAL INFILE file check could be satisfied by text inside quoted identifiers, letting a malicious server read client files

MariaDB Connector/J checked a server's LOAD DATA LOCAL INFILE file request by searching the text of the command it had sent for LOAD DATA LOCAL INFILE ' '.

At a glance

Exploited
Not known
Severity
5.9 Medium (CVSS 3.1)
Chance of exploitation
Not estimated
Sources
1 source

What to do

GitHub lists first patched versions: org.mariadb.jdbc:mariadb-java-client: 3.3.7; org.mariadb.jdbc:mariadb-java-client: 3.4.5; org.mariadb.jdbc:mariadb-java-client: 3.5.11. Confirm the affected range and upgrade guidance in the exact advisory.

Read GitHub-reviewed advisory GHSA-fhx5-2xqw-2cgm (opens a new tab)

What happened

Summary

MariaDB Connector/J checked a server's LOAD DATA LOCAL INFILE file request by searching the text of the command it had sent for LOAD DATA LOCAL INFILE ' '. The search also matched inside quoted identifiers, string literals and comments, so text returned by the server and re-used in a later query could satisfy it. A rogue or MitM server can read any file the client JVM can read.

Details

When a server answers a command with a LOCAL INFILE request (0xFB packet), the connector opens the named file on the client host and streams it to the server, after verifying that the file corresponds to a LOAD DATA LOCAL INFILE of the command it sent (ClientMessage.validateLocalFileName()). That verification was a regular expression whose prefix accepted any character, so it answered "does the text appear anywhere in the SQL", including inside a backtick-quoted identifier.

Continue reading

Several driver paths put identifiers returned by the server straight back into their next query: DatabaseMetaData.getImportedKeys() and getExportedKeys() re-use database and table names from SHOW DATABASES, SHOW TABLES and the REFERENCES clause of SHOW CREATE TABLE output, and updatable result sets build their UPDATE and refresh SELECT from the schema and table names of the column definition packets.

A server returning an identifier such as `LOAD DATA LOCAL INFILE '/etc/passwd'` makes the connector send `SHOW CREATE TABLE LOAD DATA LOCAL INFILE '/etc/passwd'.accounts `; the server answers it with a LOCAL INFILE request for /etc/passwd, the check passes, and the file content is sent. On the getImportedKeys() path the resulting error is swallowed and the application observes nothing.

The same applies to an application that interpolates identifiers obtained from the server into its own queries.

The fix parses the command instead of searching it: string literals, quoted identifiers and comments are skipped, statements are split on ;, and only a LOAD DATA|XML [LOW_PRIORITY|CONCURRENT] LOCAL INFILE found at the start of a statement is considered, its file literal or bound parameter being compared exactly to the requested file.

Impact

Confidentiality: a malicious or compromised server, or a MitM, can read arbitrary files from the host running the JDBC client (application configuration, credential files, key stores, ...) through standard java.sql calls such as DatabaseMetaData.getImportedKeys(), getExportedKeys() or ResultSet.updateRow(). Exploitation requires control of the server side of the connection and allowLocalInfile enabled (the default).

Setting allowLocalInfile=false is a workaround when LOAD DATA LOCAL INFILE is not needed. No integrity or availability impact.

Credit

Reported by buxuwa (buxu) through HackerOne

Affected package ranges reported by GitHub: org.mariadb.jdbc:mariadb-java-client: >= 3.0.0, < 3.3.7 org.mariadb.jdbc:mariadb-java-client: >= 3.4.0, < 3.4.5 org.mariadb.jdbc:mariadb-java-client: >= 3.5.0, < 3.5.11

Scores and how they were measured

CVSS base severity

5.9

Version 3.1As of

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Measurement source (opens a new tab)

How bad it is if exploited. Not a prediction of exploitation or proof you are exposed.

EPSS probability

Not available

A model's estimate of exploitation in the next 30 days, not certainty or your own risk.

Related technology

Sources

  1. Primary source

    GitHub-reviewed advisory GHSA-fhx5-2xqw-2cgm (opens a new tab)

    The public advisory supplies the description, affected package/version ranges, and any listed CVSS metric. GitHub review is not local review.

    Published Checked

  2. Primary source

    GitHub public advisory API page (opens a new tab)

    The API page supplied GHSA-fhx5-2xqw-2cgm, its actual identifiers, source dates, and structured metrics.

    Published Date not suppliedChecked

Cite this record

For factual claims, cite the primary sources above; cite KEVWire for its compilation, dates, and classifications.

APA

KEVWire. (2026, October 30). MariaDB Connector/J: LOAD DATA LOCAL INFILE file check could be satisfied by text inside quoted identifiers, letting a malicious server read client files (CVE-2026-119210). https://kevwire.com/record/CVE-2026-119210

MLA

"MariaDB Connector/J: LOAD DATA LOCAL INFILE file check could be satisfied by text inside quoted identifiers, letting a malicious server read client files (CVE-2026-119210)." KEVWire, 30 Oct. 2026, kevwire.com/record/CVE-2026-119210.

Chicago

KEVWire. "MariaDB Connector/J: LOAD DATA LOCAL INFILE file check could be satisfied by text inside quoted identifiers, letting a malicious server read client files (CVE-2026-119210)." Last modified October 30, 2026. https://kevwire.com/record/CVE-2026-119210.

Evidence summary (plain text)

MariaDB Connector/J: LOAD DATA LOCAL INFILE file check could be satisfied by text inside quoted identifiers, letting a malicious server read client files (Oct 30, 2026).
MariaDB Connector/J checked a server's LOAD DATA LOCAL INFILE file request by
searching the text of the command it had sent for
LOAD DATA LOCAL INFILE ' '. The search also matched inside quoted
identifiers, string literals and comments, so text returned by the server and
re-used in a later query could satisfy it. A rogue or MitM server can read any
file the client JVM can read.
CVSS 5.9 (version 3.1; evidence as of Oct 30, 2026; https://github.com/advisories/GHSA-fhx5-2xqw-2cgm).
Sources:
GitHub-reviewed advisory GHSA-fhx5-2xqw-2cgm: https://github.com/advisories/GHSA-fhx5-2xqw-2cgm
GitHub public advisory API page: https://api.github.com/advisories?type=reviewed&per_page=100&sort=updated&direction=desc
Record ID: CVE-2026-119210.
Record origin: Ingested record.
AI evidence: Not assessed.
Known exploitation: Not assessed.
Zero-day status: Not assessed. KEV membership alone does not establish zero-day status.
About this data

This record was ingested from a data source. Retrieved: Oct 31, 2026, 00:50 UTC. Ingestion is not an independent editorial investigation.

A CISA KEV listing documents known exploitation, not necessarily a zero-day; absence from the catalog does not prove a vulnerability has never been exploited.

Technology tags indicate possible relevance, not verified exposure. Confirm the affected product, version, and configuration against your own inventory; KEVWire does not scan your systems.

A personal reading checklist on this device, not verified remediation.

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