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    CVE-2026-17593

    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 registered realms. Because unrecognized entries were persisted and re-evaluated on every realm load via a legacy code path, this could result in unintended code executing inside the Nexus Repository process, and in some cases a persistent authentication lockout that was not visible through the administrative UI.

    Published:Aug 7, 2026
    Last Modified:Aug 7, 2026
    EPS:Aug 7, 2026
    EPSS Score:
    CVSS Score:7.2

    Affected Products

    Vendor
    Sonatype
    Product
    Nexus Repository Manager

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-138 Reflection Injection

    Related CVEs

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    CVE-2026-77123 (CVSS 6) — Nexus Repository 3 contains a sensitive information disclosure vulnerability in the capability read API. An ac…
    CVE-2026-77124 (CVSS 7.5) — In affected versions of Nexus Repository 3, the script execution endpoint (POST /service/rest/v1/script/{name}…
    CVE-2026-77125 (CVSS 7.1) — A vulnerability was identified in Sonatype Nexus Repository 3 in which two blobstore group management REST API…
    CVE-2026-14644 (CVSS 8.6) — Nexus Repository 3 contained a privilege escalation vulnerability in the REST privileges API. An authenticated…
    CVE-2026-17594 (CVSS 8.2) — Nexus Repository 3 CE/Pro versions 3.0.0 through 3.94.x contain an incorrect authorization vulnerability (CWE-…
    CVE-2026-17595 (CVSS 5.3) — Nexus Repository 3 did not fully sandbox JEXL expressions used in Content Selectors. An account holding the ne…
    CVE-2026-17596 (CVSS 6.3) — Nexus Repository 3 was found to be vulnerable to stored cross-site scripting (XSS). A user with the nexus:blob…
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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High