CVE-2026-0600 Nexus Repository 3 - Server-Side Request Forgery in Proxy Repository Configuration
Authenticated administrators can exploit SSRF in proxy configurations to access internal network resources and cloud metadata services.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-0600?
CVE-2026-0600 is a medium-severity server-side request forgery vulnerability in Sonatype Nexus Repository, published on 14 Jan 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
Server-Side Request Forgery (SSRF) vulnerability in Sonatype Nexus Repository 3 versions 3.0.0 and later allows authenticated administrators to configure proxy repositories with URLs that can access unintended network destinations, potentially including cloud metadata services and internal network resources. A workaround configuration is available starting in version 3.88.0, but the product remains vulnerable by default.
Weakness: CWE-918
Which versions are affected by CVE-2026-0600?
How do I fix CVE-2026-0600?
No fix has been published for CVE-2026-0600 yet. Limit exposure of the affected software until one is available.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2026-0600 being exploited?
There is no known exploitation of CVE-2026-0600 in the wild and no public exploit code.
Sources
Also known as GHSA-vr4x-w39v-5c7h.