Medium severity · published Jul 14, 2026
CVE-2026-14504
Nexus Repository 3 - Authorization Bypass in Component Upload API
6.5
CVSS
0.4%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 31% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NR
Nexus Repository 3 · Sonatype
3.88.0 before 3.94.0 · source: vendor
NR
Nexus Repository Manager · Sonatype
3.88.0 before 3.94.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-14504
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-14504
Release Notes
https://help.sonatype.com/en/sonatype-nexus-repository-3-94-0-release-notes.html
Vendor Advisory
https://support.sonatype.com/hc/en-us/articles/53137654741907
More from Nexus Repository 3
9.8
CVE-2019-7238
Sonatype Nexus Repository Manager Incorrect Access Control Vulnerability
9.8
CVE-2026-5189
Nexus Repository 3 - Hardcoded Credential in Internal Database Component
9.8
CVE-2019-9629
Sonatype Nexus Repository Manager before 3.17.0 establishes a default administrator user with weak defaults (fixed credentials)
9.8
CVE-2017-17717
Sonatype Nexus Repository Manager through 2.14.5 has weak password encryption with a hardcoded CMMDwoV value in the LDAP integration feature
8.8
CVE-2026-17600
Nexus Repository 3 - Session Not Invalidated on User Account Deletion or Deactivation