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CVE-2026-119277medium5.9

MariaDB Connector/J: Rogue server can make the client read past the packet through server-declared lengths

Impact

MariaDB Connector/J versions 3.0.0 to 3.3.7, 3.4.0 to 3.4.5, and 3.5.0 to 3.5.11 are affected by a vulnerability where a rogue server can cause the client to read past the packet boundary. A malicious server or man-in-the-middle attacker can trigger failures. The issue is fixed in versions 3.3.7, 3.4.5, and 3.5.11.

Summarized by @cf/meta/llama-3.3-70b-instruct-fp8-fast. Verify details against the original sources.

Affected packages

This source has no supported package-version data for matching. You can read the advisory here, but this record alone cannot power a dependency check.

Affected products

Vendor version evidence. Product records are separate from automatic dependency matching.

mariadb-corporation · GitHub_M

mariadb-connector-j

3 ranges

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affected

>= 3.0.0, < 3.3.7

>= 3.4.0, < 3.4.5

>= 3.5.0, < 3.5.11

unaffected

unknown

Other versions: unknown

Original source 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, decoders for OK packet session-state blocks, column definition packets, text row data, or binary row data used server-declared lengths without confirming that the requested bytes remained in the receive buffer. The decoders could position reads, create sub-buffers, or decode strings beyond the packet boundary. A malicious or compromised server, or a machine-in-the-middle attacker, could trigger unchecked ArrayIndexOutOfBoundsException or IllegalArgumentException failures inside JDBC calls and terminate connection handling. This issue is fixed in versions 3.3.7, 3.4.5, and 3.5.11.

Inside the record

Evidence available

Package identity · not supplied
Version evidence
Remediation guidance · not supplied
Weakness classification
Additional publishers · not supplied

Describes the evidence in this view, not whether the product is safe.

Original records

CVE-2026-119277

View the latest unmodified CVE JSON from the official source. It may be newer than this imported page.

cve.new JSON →

Underlying weaknesses

The source’s classification of what caused the vulnerability.

CWE-125 ↗

CWE-125: Out-of-bounds Read

GitHub_M

Related →
CWE-130 ↗

CWE-130: Improper Handling of Length Parameter Inconsistency

GitHub_M

Related →
Contributing organizations · 1
GitHub_M

Assigning organization

2026-10-29

What changed

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References

7 sources