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Vulnerability record · CVE-2026-3329 · published 11 June 2026

CVE-2026-3329: Sonatype nexus repository manager improper restriction of authentication attempts vulnerability

Sonatype · Nexus Repository Manager

A remote unauthenticated attacker may be able to conduct credential-guessing attacks against user accounts in Sonatype Nexus Repository via authentication endpoints.

8.7 CVSS 4.0 High EPSS 0.63% · top 51.7% CWE-307 · Improper restriction of authentication attempts
8.7CVSS 4.0 base score
0.63%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
21 Jul 2026Last modified by NVD

Description

A remote unauthenticated attacker may be able to conduct credential-guessing attacks against user accounts in Sonatype Nexus Repository via authentication endpoints.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://help.sonatype.com/en/sonatype-nexus-repository-3-93-0-release-notes.html Release Notes
https://support.sonatype.com/hc/en-us/articles/52482870409491 Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2019-7238Sonatype Nexus Repository Manager incorrect access control allows RCESonatype Nexus Repository Manager before 3.15.0 has incorrect access control, and the vendor advisory describes it as missing access controls leading…KEVEPSS 77%analysed9.8CVE-2019-9629Sonatype nexus repository manager improper authentication vulnerabilitySonatype Nexus Repository Manager before 3.17.0 establishes a default administrator user with weak defaults (fixed credentials).EPSS 1.5%9.8CVE-2017-17717Sonatype nexus repository manager broken cryptographic algorithm vulnerabilitySonatype Nexus Repository Manager through 2.14.5 has weak password encryption with a hardcoded CMMDwoV value in the LDAP integration feature.EPSS 0.71%9.4CVE-2026-3199Sonatype nexus repository manager deserialization of untrusted data vulnerabilityA vulnerability in the task management component of Sonatype Nexus Repository versions 3.22.1 through 3.90.2 allows an authenticated attacker with ta…EPSS 0.77%9.2CVE-2026-5189Sonatype nexus repository manager hard-coded credentials vulnerabilityCWE-798: Use of Hard-coded Credentials in Sonatype Nexus Repository Manager versions 3.0.0 through 3.70.5 allows an unauthenticated attacker with net…EPSS 0.62%8.9CVE-2026-17601Sonatype nexus repository manager missing authorization vulnerabilityA user holding a permission to update privilege definitions could modify a wildcard privilege already assigned to their own role to grant broader per…EPSS 0.29%8.8CVE-2020-15871Sonatype nexus repository manager vulnerabilitySonatype Nexus Repository Manager OSS/Pro version before 3.25.1 allows Remote Code Execution.EPSS 2.2%8.8CVE-2020-11753Sonatype nexus repository manager incorrect authorization vulnerabilityAn issue was discovered in Sonatype Nexus Repository Manager in versions 3.21.1 and 3.22.0. It is possible for a user with appropriate privileges to …EPSS 1.7%

Source: NIST National Vulnerability Database (record CVE-2026-3329), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.