SSRF in Sonatype Nexus Repository 3
CVE-2026-14646
Nexus Repository 3 did not apply its existing Server-Side Request Forgery (SSRF) protections to HTTP redirect targets returned by proxy repository upstream servers. Any user with read access to a proxy repository backed by an attacker-controlled or compromised upstream server — including an anonymous user, if anonymous access is enabled — could receive a response from an internal network address or cloud metadata endpoint as repository content, potentially exposing sensitive information such as cloud IAM credentials.
Vulnerability class: SSRF (Server-Side Request Forgery)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.003 (17.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 17th percentile — 17.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: -0.001
Affected products
- Sonatype Nexus Repository 3 — versions 3.0.0
- Sonatype Nexus Repository Manager
Weakness classification (CWE)
References
- 103e4ec9-0a87-450b-af77-479448ddef11 (Permissions Required, patch)
- 103e4ec9-0a87-450b-af77-479448ddef11 (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-14646?
- CVE-2026-14646 is a high-severity vulnerability in Sonatype Nexus Repository 3, classified under Server-Side Request Forgery (SSRF). CVSS score: 7.7/10. Published 2026-07-14.
- How severe is CVE-2026-14646?
- High severity. CVSS v3 base score is 7.7 out of 10.