Nexus Repository 3 - Server-Side Request Forgery via Email Configuration Verification
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
Nexus Repository 3 contains a Server-Side Request Forgery (SSRF) vulnerability in the email configuration verification feature. A user holding the nexus:settings:update permission could submit arbitrary host and port values to the email test/verification endpoint, causing the server to attempt outbound network connections to internal or otherwise restricted network addresses. Differences in the server's response could be used to infer whether internal hosts and ports are reachable. This issue affects Nexus Repository 3 CE/Pro versions up to and including 3.94.1, and is fixed in version 3.95.0.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
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-2026-17597
- 2026-10-03 Alias added: GHSA-prvc-9rv9-3f72
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-2026-17597 · CVE Program
- CVE-2026-17597 · NVD
- FIRST EPSS
- GHSA-prvc-9rv9-3f72 · 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