Medium 6.9Published Oct 15, 2026

CVE-2026-97666Nexus Repository 3 - Unsafe Reflection in ExtDirect Repository Endpoint

Updated under an hour ago (2026-10-19 08:00 UTC)

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It affects Sonatype Nexus Repository 3. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Sonatype Nexus Repository 3

Exploited in the last 30 days

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.

CVSS: 6.9 MEDIUM (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Weakness (CWE): CWE-470
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Sonatype
NVD analysis: Awaiting Analysis
Record last updated: Oct 15, 2026
First seen by InfoSec Signals: Oct 15, 2026

Affected products

Affected products

Sonatype Nexus Repository 3 sonatype:nexus_repository_manager	from 3.0.0 before 3.97.0	CNA record

References

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

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.