CVE-2026-111440 openGauss-server CVE debrief

Who should care

Defenders responsible for openGauss-connector-jdbc deployments, especially those using versions 1.1.0 through 7.0.0-RC3, should assess their exposure and prioritize verification and remediation efforts.

Why it matters

Defenders should care about CVE-2026-111440 because it affects openGauss-connector-jdbc, potentially allowing attackers to trigger unexpected class loading and construction side effects on clients. This could disrupt operations and requires verification of affected versions and prioritization of remediation efforts.

• Potential for unauthorized class loading and instantiation
• Possible disruption of client-side operations
• Need for verification of affected versions in the environment
• Priority for updating to a fixed version

Technical summary

The openGauss-connector-jdbc's LogFactory class is vulnerable to a class loading and instantiation issue. The class loads a logger class based on the JDBC connection parameters without proper validation, allowing an attacker to potentially trigger unexpected class loading and construction side effects on the client. This issue affects openGauss-connector-jdbc versions 1.1.0 through 7.0.0-RC3 and is fixed in version 7.0.0-LTS. The vulnerability requires verification of affected versions and prioritization of remediation efforts.

Defensive priority

Defenders should prioritize verifying the presence of openGauss-connector-jdbc versions 1.1.0 through 7.0.0-RC3 in their environments and assess exposure to untrusted JDBC URLs or connection properties.

Recommended defensive actions

• Verify the presence of openGauss-connector-jdbc versions 1.1.0 through 7.0.0-RC3 in your environment
• Assess exposure to untrusted JDBC URLs or connection properties
• Update to version 7.0.0-LTS or later if vulnerable
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE description indicates that the openGauss-connector-jdbc is vulnerable to a class loading and instantiation issue due to missing validation of the logger class name in the JDBC connection parameters. This could potentially allow an attacker to trigger unexpected class loading and construction side effects on the client.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.