{"id":"CVE-2026-97666","title":"Sonatype Nexus Repository 3 allows an unauthenticated remote attacker to supply attacker-controlled input to a Java class loading call through an ExtDirect endpoint","summary":"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 …","severity":"medium","cvss":6.9,"cvssVector":"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","cwe":["CWE-470"],"vendor":"Sonatype","product":"Nexus Repository 3","affected":["nexus_repository_3 >= 3.0.0 < 3.97.0"],"published":"2026-10-15","updated":"2026-10-15","sourceUpdated":"2026-10-15T17:17:33.677","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-97666","references":[{"url":"https://help.sonatype.com/en/sonatype-nexus-repository-3-97-0-release-notes.html","label":"103e4ec9-0a87-450b-af77-479448ddef11"},{"url":"https://support.sonatype.com/hc/en-us/articles/56206649520147/","label":"103e4ec9-0a87-450b-af77-479448ddef11"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-10-15T16:11:03.463175Z"},"cvssSource":"cna","ingestedAt":"2026-10-15T16:13:11.157Z","slug":"CVE-2026-97666","body":"## Overview\n\nSonatype 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":38,"depthScoreParts":{"impact":38,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}