# CVE-2026-101783: Oracle MySQL Router data access vulnerability

Source: https://junglewise.ai/threats/cve-2026-101783-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-2026-101783 · Severity: high · CVSS 7.4 · Published 2026-10-20

MySQL Router is a component that routes database connections for Oracle MySQL. An unauthenticated attacker with network access can exploit a vulnerability to read, modify, or delete critical database data without authentication. This could lead to data theft, corruption, or loss affecting all systems relying on the compromised router.

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

## Quick answers

**Is CVE-2026-101783 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-101783 being exploited in the wild.

**How severe is CVE-2026-101783?** High severity, with a CVSS score of 7.4, published 20 October 2026.

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

**Is there a fix for CVE-2026-101783?** 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-2026-101783 attacked?** It is attacked over the network, in a hosted service.

**Am I affected by CVE-2026-101783?** 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

A difficult-to-exploit vulnerability in MySQL Router (version 26.7.0) allows unauthenticated network access via HTTPS to compromise confidentiality and integrity of database data. The vulnerability requires no user interaction and no privileges, enabling unauthorized access or modification of critical data managed by the router. A fix version is not specified in the advisory.

## 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 denial of service via network protocols](https://junglewise.ai/threats/cve-2026-101810-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)