What is CVE-2026-14504?

CVE-2026-14504 is a medium-severity vulnerability in Sonatype Nexus Repository 3, classified under Missing Authorization. CVSS score: 6.5/10. Published 2026-07-14.

How severe is CVE-2026-14504?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Auth bypass in Sonatype Nexus Repository 3

CVE-2026-14504

An authorization bypass in Nexus Repository 3's component upload API allowed a user with only read/browse privileges on a Swift, Terraform, or Conda hosted repository to upload arbitrary artifacts, bypassing the intended write-permission check.

Vulnerability class: Broken Access Control

Published 2026-07-14 · last modified 2026-09-22.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.002 (11.3th percentile), scored 2026-10-15.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 11th percentile — 11.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.002 · change: -0.002

Affected products

Sonatype Nexus Repository 3 — versions 3.88.0
Sonatype Nexus Repository Manager

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

103e4ec9-0a87-450b-af77-479448ddef11 (Release Notes, patch)
103e4ec9-0a87-450b-af77-479448ddef11 (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2026-14504?: CVE-2026-14504 is a medium-severity vulnerability in Sonatype Nexus Repository 3, classified under Missing Authorization. CVSS score: 6.5/10. Published 2026-07-14.
How severe is CVE-2026-14504?: Medium severity. CVSS v3 base score is 6.5 out of 10.