GHSA-g76j-4cxx-23h9
MEDIUMGHSA-g76j-4cxx-23h9 is a medium-severity (CVSS 6.6) vulnerability in mysql:mysql-connector-java. O3 Security confirms whether GHSA-g76j-4cxx-23h9 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
Improper Handling of Insufficient Permissions or Privileges in MySQL Connectors Java
Real-World Exposure
mysql:mysql-connector-javaReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.
Description
Vulnerability in the MySQL Connectors product of Oracle MySQL (component: Connector/J). Supported versions that are affected are 8.0.27 and prior. Difficult to exploit vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Connectors. Successful attacks of this vulnerability can result in takeover of MySQL Connectors. CVSS 3.1 Base Score 6.6 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H).
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| ☕Maven | mysql:mysql-connector-java | all versions | 8.0.28 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for mysql:mysql-connector-java. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.
Fix
Update mysql:mysql-connector-java to 8.0.28 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-g76j-4cxx-23h9 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 pinpoints whether GHSA-g76j-4cxx-23h9 is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.
Tailored to GHSA-g76j-4cxx-23h9. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is GHSA-g76j-4cxx-23h9 in your dependencies?
O3 detects GHSA-g76j-4cxx-23h9 across Maven dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.