# CVE-2026-14645

Nexus Repository 3 does not validate the destination of the "Webhook: Global" capability's configured URL before making an outbound HTTP request, allowing a user holding the Capability Administration permission to cause the server to send requests to internal network locations (Server-Side Request Forgery). This permission is granted by role assignment, independent of authentication status, so an unauthenticated user could also trigger this behavior if the anonymous role has been granted the permission.

Published Jul 6, 2026

CVSS Score Medium 5.1

## Security Details

### Components Impacted

Sonatype Research

### CVE-2026-14645 Security Details

**CVE ID**  CVE-2026-14645  
**CWE**  CWE-918 [Learn more about CWE-918](https://cwe.mitre.org/data/definitions/918.html)

**CVE Description** Nexus Repository 3 does not validate the destination of the "Webhook: Global" capability's configured URL before making an outbound HTTP request, allowing a user holding the Capability Administration permission to cause the server to send requests to internal network locations (Server-Side Request Forgery). This permission is granted by role assignment, independent of authentication status, so an unauthenticated user could also trigger this behavior if the anonymous role has been granted the permission.

**Published** Jul 6, 2026

**CVSS Score & Severity** 5.1 Medium

**CVSS Vector** CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:N/SC:L/SI:N/SA:N

**EPSS Score** 0.397%

**Malware** malware

**KEV Status** Not in KEV Catalog: No known exploits

### Vulnerable Methods

`org/sonatype/nexus/internal/webhooks/WebhookServiceImpl.send(Lorg/sonatype/nexus/webhooks/WebhookRequest;)V`

**JVM** Vulnerable params: 0

### Affected Ecosystems

**Source** National Vulnerability Database

**References** [support.sonatype.com](https://support.sonatype.com/hc/en-us/articles/53158843564179/)