What is CVE-2026-0600?
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.
The record classifies CVE-2026-0600 under weakness class CWE-918. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 292 days ago.
Severity and exploitation probability
- CVSS v4.0 base score
- 6.2 — Medium (derived from score)
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:H/SI:L/SA:N - EPSS (FIRST)
- 0.3% probability of exploitation in the next 30 days, higher than 21.3% of all scored CVEs
- CISA KEV
- Not listed in the CISA Known Exploited Vulnerabilities catalog
- Threadlinqs priority
- 4/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- Published
- 2026-01-14, last modified 2026-01-15
Is CVE-2026-0600 being exploited?
It currently carries a trending score of 10 in the Threadlinqs vulnerability feed.
Affected products and versions
- Sonatype: Nexus Repository
How to fix CVE-2026-0600
No vendor patch reference has been recorded for CVE-2026-0600 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.
Threat activity tracking CVE-2026-0600
1 tracked threat in the Threadlinqs corpus references CVE-2026-0600, either in the campaign’s CVE list or as an indicator on the campaign record.
Sources
Enriched from CVE.org, FIRST EPSS. Last verified by Threadlinqs on .