CVE-2026-97666

Description

Sonatype Nexus Repository 3 allows an unauthenticated remote attacker to supply attacker-controlled input to a Java class loading call through an ExtDirect endpoint. This allows the attacker to learn whether specific classes are present in the application. The issue does not by itself allow code execution.

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Weakness Type (CWE)

CWE-470 CWE-470

References

Other References

https://help.sonatype.com/en/sonatype-nexus-repository-3-97-0-release-notes.html https://support.sonatype.com/hc/en-us/articles/56206649520147/

Frequently Asked Questions

What is CVE-2026-97666? +

Sonatype Nexus Repository 3 allows an unauthenticated remote attacker to supply attacker-controlled input to a Java class loading call through an ExtDirect endpoint. This allows the attacker to learn whether specific classes are present in the application. The issue does not by itself allow code execution.

How do I check if I'm vulnerable to CVE-2026-97666? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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