Vulnerability in Sonatype Nexus Repository 3

[ Description ]Official 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.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ Advisories ]Government CERT advisories

• BSI CERT-Bund15 Oct 2026WID-SEC-2026-4004

  Sonatype Nexus Repository Manager: Multiple vulnerabilities Translated from German

  CVE-2026-97667CVE-2026-97665CVE-2026-97712+1 more CVEs

[ References ]References

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