CVE-2026-0600Network attack vector

Authenticated internal access via unchecked proxy URLs

Published Jan 14, 2026 · Updated Jan 14, 2026

Server-side request forgery in Sonatype Nexus Repository 3.0.0 and later allows remote authenticated users to reach internal services. Proxy repository configuration accepts a remote storage URL without blocking private destinations, and an artifact request makes the server fetch that URL. Exploitation requires administrator privileges, a subsequent user request, and server connectivity to the target; resulting requests can expose cloud metadata or interact with internal services.

CVSS severity6.2
Medium
EPSS probability0.30%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Server-side request forgery in Sonatype Nexus Repository 3.0.0 and later allows remote authenticated users to reach internal services. Proxy repository configuration accepts a remote storage URL without blocking private destinations, and an artifact request makes the server fetch that URL. Exploitation requires administrator privileges, a subsequent user request, and server connectivity to the target; resulting requests can expose cloud metadata or interact with internal services.

The record

CVE
CVE-2026-0600
Published
Jan 14, 2026
Updated
Jan 14, 2026
Vendor
Sonatype
Product
Nexus Repository
Classifications
CWE-918, T1552.005
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Jan 14, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 14, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=3.0.0 <*

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Sonatype · Nexus Repositoryversion=3.0.0 <*

Published CVSS scores

6.2SonatypeCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:H/SI:L/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)
T1552.005Cloud Instance Metadata API

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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