CVE-2021-42568 Nexus Repository 3 - Incorrect Access Control - 2021-10-27

Date: October 27, 2021

Affected Versions:

Nexus Repository 3 versions up to and including 3.35.0

Fixed in Version:

Nexus Repository 3 version 3.36.0 and later


Medium - 4.3 - (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N)


We have discovered an incorrect access control vulnerability in Nexus Repository 3.

A user account with low privileges can access the SSL Certificates Loading function. We have fixed the issue by ensuring that user accounts can only access SSL Certificates if they have corresponding privileges. This advisory provides the pertinent information needed to properly address this vulnerability along with the details on how to reach us if you have any further questions or concerns.

We highly recommend all instances of Nexus Repository 3 upgrade to 3.36.0 or later. The latest version can be downloaded from:

Nexus Repository 3 Download

For detailed information on upgrading, please see:

Upgrading Nexus Repository 3.1.0 and Newer


If you run into any problems or have any questions/concerns, please contact us by filing a ticket at


Sonatype thanks Zhiyong Chen for finding and reporting this issue.

Frequently Asked Questions:

Q: What is the risk associated with this vulnerability?

A: An authenticated attacker could retrieve the SSL Certificate using an account with low privileges.

Q: What preconditions must be met in order to be vulnerable?

A: An attacker must have proper credentials for authentication.

Q: Are there implications associated with this advisory itself?

A:  Disclosure unfortunately means bad actors may try to take advantage. While we have initially limited the information to the minimum details necessary for users to affect an appropriate fix, this merely slows down a would-be attacker. As such, we are advising all organizations utilizing Nexus Repository to immediately assess their individual impact and take appropriate action in response.

Q: Where can I obtain more information associated with the vulnerability?

A: At this time, and in the interest of best protecting our user community, we are limiting the information released to what absolutely required in order to assess impact and affect remediation. Please contact support for more information.

Q: Why is Sonatype making this information available?

A: This is part of a responsible disclosure process. We are taking a concerted and proactive approach in our outreach activities and an effort to achieve the most rapid remediation possible.

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