CVE-2026-17593 Nexus Repository - Arbitrary Class Instantiation via Unsafe Realm Configuration

An account holding the nexus:settings:update permission in Nexus Repository 3 or the equivalent nexus:settings permission in the legacy Nexus Repository 2 could submit arbitrary values as realm identifiers through an internal configuration API that did not validate them against the set of...

CVE-2026-17593

Nexus Repository 3 (and legacy Nexus Repository 2) is affected by CVE-2026-17593 where an account with nexus:settings:update can submit arbitrary realm identifiers via an internal configuration API that doesn’t validate against registered realms. Unrecognized entries are persisted and reread via ...