Nexus Repository 3 - Privilege Escalation
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-843 and the CVSS impact.
Summary
Nexus Repository 3 contained a privilege escalation vulnerability in the REST privileges API. An authenticated user with permission to manage privileges could, under certain role configurations, escalate their own access to full administrator by exploiting a type-confusion flaw in the privilege update endpoint.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA Nexus Repository 3 (Sonatype) Fixed in 3.95.0
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Sonatype Nexus Repository 3 3.95.0
10 records Highest priority Priority MEDIUM 4 MEDIUM, 6 LOW
Other records, highest priority first
- TI-2026-14434 Nexus Repository 3 - HikariCP connectionInitSql Injection RCE via DataStore Configuration APIPriority MEDIUM 41
- TI-2026-14432 Nexus Repository 3 - Wildcard Privilege Update Self-Escalation to AdministratorPriority MEDIUM 41
- TI-2026-14431 Nexus Repository 3 - Session Not Invalidated on User Account Deletion or DeactivationPriority MEDIUM 40
Timeline
- 2026-10-02 Threatist record created from CVE-2026-14644
- 2026-10-03 Alias added: GHSA-ghg9-vwgf-3fv8
- 2026-10-25 Priority changed: LOW → MEDIUM
References
More Sonatype Nexus Repository Manager vulnerabilities
- TI-2019-05133 Sonatype Nexus Repository Manager before 3.15.0 has Incorrect Access Control. KEVCVSS 3.1CRITICAL 9.8
- TI-2019-03883 OS command injection in Nexus Repository Manager CVSS 3.0HIGH 8.8
- TI-2026-02763 Nexus Repository 3 - Authenticated Remote Code Execution via Task Property Injection CVSS 4.0CRITICAL 9.4
- TI-2026-04532 Nexus Repository 3 - Hardcoded Credential in Internal Database Component CVSS 4.0CRITICAL 9.2
- TI-2021-15218 Multiple XSS issues exist in Sonatype Nexus Repository Manager 3 before 3.33.0. CVSS 3.1MEDIUM 5.4
- TI-2019-07044 Sonatype Nexus Repository Manager before 3.17.0 establishes a default administrator user… CVSS 3.0CRITICAL 9.8
Sources
- CVE-2026-14644 · CVE Program
- CVE-2026-14644 · NVD
- FIRST EPSS
- GHSA-ghg9-vwgf-3fv8 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences