# CVE-2026-101810: Oracle MySQL Router denial of service via network protocols

Source: https://junglewise.ai/threats/cve-2026-101810-vulnerability-in-the-mysql-router-product-of-oracle-mysql  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-20. Updated: 2026-10-20  
License: CC BY 4.0 with a link back

CVE-2026-101810 · Severity: high · CVSS 7.5 · Published 2026-10-20

MySQL Router is a lightweight middleware that routes database connections to MySQL servers. An unauthenticated attacker can remotely crash or hang MySQL Router by sending specially crafted requests, causing complete service outage and preventing legitimate connections to the database.

Technologies: [Oracle MySQL Router](https://junglewise.ai/threats/technologies/mysql-router). Vendors: [Oracle](https://junglewise.ai/threats/vendors/oracle).

## Quick answers

**Is CVE-2026-101810 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-101810 being exploited in the wild.

**How severe is CVE-2026-101810?** High severity, with a CVSS score of 7.5, published 20 October 2026.

**Which products and versions are affected?** Oracle MySQL Router 26.7.0.

**Is there a fix for CVE-2026-101810?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-101810 attacked?** It is attacked over the network, in a hosted service.

**Am I affected by CVE-2026-101810?** Check whether you run Oracle MySQL Router at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

An easily exploitable denial-of-service vulnerability in MySQL Router's general routing component (CVE-2026-101810) allows unauthenticated network attackers to trigger a hang or repeated crash via multiple protocols. The attack requires no authentication, user interaction, or special system access—only network connectivity—and impacts availability with no confidentiality or integrity compromise. Fixed versions have not been disclosed in the available advisory material.

## Affected products

- Oracle MySQL Router 26.7.0

## Timeline

- 2026-10-20: disclosed

## References

- [https://www.oracle.com/security-alerts/cpuoct2026.html](https://www.oracle.com/security-alerts/cpuoct2026.html)

## Related threats

- [Oracle MySQL Router data access vulnerability](https://junglewise.ai/threats/cve-2026-101783-vulnerability-in-the-mysql-router-product-of-oracle-mysql)
- [Oracle MySQL Router information disclosure vulnerability](https://junglewise.ai/threats/cve-2026-101633-vulnerability-in-the-mysql-router-product-of-oracle-mysql)
- [Oracle MySQL Router information disclosure via HTTPS](https://junglewise.ai/threats/cve-2026-101632-vulnerability-in-the-mysql-router-product-of-oracle-mysql)
- [Oracle MySQL Router authentication bypass in HTTPS endpoint](https://junglewise.ai/threats/cve-2026-101631-vulnerability-in-the-mysql-router-product-of-oracle-mysql)
- [Oracle MySQL Router data compromise in Router General component](https://junglewise.ai/threats/cve-2026-60725-oracle-mysql-router-data-compromise-in-router-general-component)