Is CVE-2026-101677 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-101677 being exploited in the wild.

How severe is CVE-2026-101677?

Medium severity, with a CVSS score of 4.3, published 20 October 2026.

Which products and versions are affected?

Oracle Mysql Connector\/J 26.7.0.

Is there a fix for CVE-2026-101677?

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-2026-101677 attacked?

It is attacked over the network, in a software library.

Am I affected by CVE-2026-101677?

Check whether you run Oracle Mysql Connector\/J 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.

CVE-2026-101677: Oracle MySQL Connector/J data integrity compromise via network

CVE-2026-101677 · Severity: medium · CVSS 4.3 · Published 2026-10-20

Oracle MySQL Connector/J is a Java library that allows applications to connect to MySQL databases. An unauthenticated attacker can exploit a flaw in version 26.7.0 to modify database records (insert, update, or delete) through social engineering, compromising data integrity without needing valid credentials. The vulnerability requires user interaction but poses a direct risk to data stored in MySQL databases.

Technologies: Oracle Mysql Connector\/J. Vendors: Oracle.

Quick answers

Is CVE-2026-101677 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-101677 being exploited in the wild.
How severe is CVE-2026-101677?: Medium severity, with a CVSS score of 4.3, published 20 October 2026.
Which products and versions are affected?: Oracle Mysql Connector\/J 26.7.0.
Is there a fix for CVE-2026-101677?: 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-2026-101677 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2026-101677?: Check whether you run Oracle Mysql Connector\/J 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 network-accessible vulnerability in MySQL Connector/J 26.7.0 allows unauthenticated attackers to perform unauthorized data modification (insert, update, delete) with user interaction. The CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N) indicates low attack complexity via network with no privileges required, but human interaction is necessary. The vulnerability impacts data integrity only, with no confidentiality or availability impact.

Affected products

Oracle MySQL Connector/J 26.7.0

Timeline

2026-10-20: disclosed

References

https://www.oracle.com/security-alerts/cpuoct2026.html

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