SB2026051242 - Multiple vulnerabilities in Nexus Repository Manager
Published: May 12, 2026
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 vulnerabilities.
1) Server-Side Request Forgery (SSRF) (CVE-ID: CVE-2026-3048)
CWE-ID: CWE-918 - Server-Side Request Forgery (SSRF)
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote user to initiate unintended server-side connections.
The vulnerability exists due to improper LDAP referral handling in the LDAP authentication component when configuring or testing LDAP connectivity against a malicious LDAP server. A remote user can configure or test LDAP connectivity with an attacker-controlled LDAP server to initiate unintended server-side connections.
The issue only affects instances where LDAP authentication is configured or being configured, and an administrator may also be influenced to test connectivity against an attacker-controlled LDAP server.
2) Cross-site scripting (CVE-ID: CVE-2026-7308)
CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear
The vulnerability allows a remote user to execute arbitrary JavaScript in the browser of another user and perform actions in the context of the victim's session.
The vulnerability exists due to stored cross-site scripting in the HTML index page for hosted repository directory browsing when rendering uploaded content. A remote user can upload crafted content to a hosted repository to execute arbitrary JavaScript in the browser of another user and perform actions in the context of the victim's session.
User interaction is required, as a separate user must browse the repository contents via the built-in HTML index page.
Remediation
Install update from vendor's website.