# CVE-2026-71073: Denial of service in MySQL Connectors

> An unauthenticated attacker with local access can cause a complete denial of service in the MySQL ODBC Connector via a crash.

- **Severity:** Medium 5.5 (`CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 18 Aug 2026
- **Updated:** 24 Aug 2026
- **Also known as:** GHSA-7j9m-3rwm-gq52, UBUNTU-CVE-2026-71073

## What is CVE-2026-71073?

CVE-2026-71073 is a medium-severity denial of service vulnerability in Oracle Corporation MySQL Connectors, published on 18 Aug 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

### Official description

Vulnerability in the MySQL Connectors product of Oracle MySQL (component: Connector/ODBC).   The supported version that is affected is 26.7.0. Easily exploitable vulnerability allows unauthenticated attacker with logon to the infrastructure where MySQL Connectors executes to compromise MySQL Connectors.  Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Connectors. CVSS 3.1 Base Score 5.5 (Availability impacts).  CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H).

Weakness: CWE-404 (Improper Resource Shutdown or Release)

## Which versions are affected by CVE-2026-71073?

It affects 1 product.


Products: Oracle Mysql Connector\/Odbc.

## How do I fix CVE-2026-71073?

No fix has been published for CVE-2026-71073 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-71073 being exploited?

There is no known exploitation of CVE-2026-71073 in the wild and no public exploit code.

## Other vulnerabilities in Oracle Corporation MySQL Connectors

- [CVE-2026-71084](https://insights.sbomify.com/CVE-2026-71084/): Denial of service in MySQL Connectors (medium 6.8)
- [CVE-2026-71079](https://insights.sbomify.com/CVE-2026-71079/): Denial of service in MySQL Connectors (medium 6.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-71073 and fix it if it is affected.

What it is: CVE-2026-71073 is a medium-severity denial of service vulnerability in Oracle Corporation MySQL Connectors, published on 18 Aug 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2026-71073 in the wild and no public exploit code.

Affected product: Oracle Corporation MySQL Connectors. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-71073/ (Markdown: https://insights.sbomify.com/CVE-2026-71073/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-71073
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-71073
- OSV: https://osv.dev/vulnerability/CVE-2026-71073

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-71073/
Summaries are generated and may contain mistakes; the official description above is the record.