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    CVE-2026-77121

    A user account with permission to deploy artifacts to a hosted Maven repository could upload a POM file containing an oversized metadata field. This causes future attempts to list or browse that repository's components to permanently fail until an administrator repairs the underlying data. Only the targeted repository is affected; other repositories and overall server health remain unaffected.

    Published:Sep 2, 2026
    Last Modified:Sep 3, 2026
    EPS:Sep 2, 2026
    EPSS Score:0.00235
    CVSS Score:5.3

    Affected Products

    Vendor
    Sonatype
    Product
    Nexus Repository Manager
    Vendor
    Sonatype
    Product
    Nexus Repository Manager 3

    Exploits

    No exploit reference

    Related CVEs

    CVE-2026-77122 (CVSS 5.3) — An authorization flaw in the REST API repository details endpoint (GET /service/rest/v1/repositories/{reposito…
    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-2026-17593 (CVSS 7.2) — An account holding the nexus:settings:update permission in Nexus Repository 3 (or the equivalent nexus:setting…
    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…
    CVE-2026-17598 (CVSS 5.3) — Sonatype Nexus Repository 3 did not properly filter internal configuration keys from user-supplied task proper…

    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