Nexus Repository 3 - Server-Side Request Forgery via Email Configuration Verification

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-17597
StatePUBLISHED
AssignerSonatype
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-07 17:17:00 UTC
Updated2026-08-07 18:17:09 UTC
DescriptionNexus 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.

Risk And Classification

Primary CVSS: v4.0 5.1 MEDIUM from 103e4ec9-0a87-450b-af77-479448ddef11

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:L/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Problem Types: CWE-918 | CWE-918 CWE-918 Server-Side Request Forgery (SSRF)

VersionSourceTypeScoreSeverityVector
4.0103e4ec9-0a87-450b-af77-479448ddef11Secondary5.1MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:L/SI:N/SA:N/E:X/C...
4.0CNACVSS5.1MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:L/SI:N/SA:N

CVSS v4.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
High
User Interaction
None
Confidentiality
None
Integrity
None
Availability
None
Sub Conf.
Low
Sub Integrity
None
Sub Availability
None

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:L/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Sonatype Nexus Repository 3 affected 3.0.0 3.95.0 semver Not specified

References

ReferenceSourceLinkTags
support.sonatype.com/hc/en-us/articles/53876968087955 103e4ec9-0a87-450b-af77-479448ddef11 support.sonatype.com
help.sonatype.com/en/sonatype-nexus-repository-3-95-0-release-notes.html 103e4ec9-0a87-450b-af77-479448ddef11 help.sonatype.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Sanjok Karki (@thesanjok), National Forensic Sciences University, Goa (en)

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