# CVE-2026-3329: Sonatype Nexus Repository improper restriction of authentication attempts

Source: https://junglewise.ai/threats/cve-2026-3329-sonatype-nexus-repository-improper-restriction-of-authentication  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-06-11. Updated: 2026-06-11  
License: CC BY 4.0 with a link back

CVE-2026-3329 · Severity: info · CVSS 8.7 · Published 2026-06-11

Sonatype Nexus Repository, a platform used by organizations to manage and store software components, is vulnerable to credential-guessing attacks. An unauthorized attacker could repeatedly attempt to guess user passwords through the system's login interfaces without being blocked. If successful, this could lead to unauthorized access to sensitive software code, proprietary packages, and internal development resources.

Technologies: [Sonatype Nexus Repository](https://junglewise.ai/threats/technologies/nexus-repository). Vendors: [Sonatype](https://junglewise.ai/threats/vendors/sonatype).

## Quick answers

**Is CVE-2026-3329 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-3329 being exploited in the wild.

**How severe is CVE-2026-3329?** Informational severity, with a CVSS score of 8.7, published 11 June 2026.

**Which products and versions are affected?** Sonatype Nexus Repository Fixed in 3.93.0.

**Is there a fix for CVE-2026-3329?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-3329 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-3329?** Check whether you run Sonatype Nexus Repository at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

Sonatype Nexus Repository is vulnerable to improper restriction of excessive authentication attempts (CWE-307) within its authentication endpoints. A remote, unauthenticated attacker can launch brute-force or dictionary attacks to guess user credentials because the system fails to adequately throttle or block repeated failed login attempts. Successful exploitation allows an attacker to gain unauthorized access to user accounts, potentially leading to the compromise of hosted repositories and administrative functions. The vulnerability is addressed in Sonatype Nexus Repository version 3.93.0.

## Affected products

- Sonatype Nexus Repository Fixed in 3.93.0

## Timeline

- 2026-06-11: disclosed
- 2026-06-11: advisory

## References

- [https://help.sonatype.com/en/sonatype-nexus-repository-3-93-0-release-notes.html](https://help.sonatype.com/en/sonatype-nexus-repository-3-93-0-release-notes.html)
- [https://support.sonatype.com/hc/en-us/articles/52482870409491](https://support.sonatype.com/hc/en-us/articles/52482870409491)

## Related threats

- [Sonatype Nexus Repository privilege escalation in script execution](https://junglewise.ai/threats/cve-2026-77124-sonatype-nexus-repository-privilege-escalation-in-script)
- [Sonatype Nexus Repository denial of service via oversized POM metadata](https://junglewise.ai/threats/cve-2026-77121-sonatype-nexus-repository-denial-of-service-via-oversized-pom)
- [Sonatype Nexus Repository 3 SSRF in SSL Certificate Retrieval endpoint](https://junglewise.ai/threats/cve-2026-7494-sonatype-nexus-repository-3-ssrf-in-ssl-certificate-retrieval)
- [An authenticated user with upload permission to a hosted repository can store content that causes arbitrary JavaScript…](https://junglewise.ai/threats/cve-2026-7308-sonatype-nexus-repository-stored-xss-in-html-index-page)
- [Sonatype Nexus Repository reflected XSS](https://junglewise.ai/threats/cve-2026-3438-sonatype-nexus-repository-reflected-xss)