CVE-2026-17593

An account holding the nexus:settings:update permission in Nexus Repository 3 (or the equivalent nexus:settings permission in the legacy Nexus Repository 2) could submit arbitrary values as realm identifiers through an internal configuration API that did not validate them against the set of registered realms. Because unrecognized entries were persisted and re-evaluated on every realm load via a legacy code path, this could result in unintended code executing inside the Nexus Repository process, and in some cases a persistent authentication lockout that was not visible through the administrative UI.

CVSS v3 7.2 HIGH

7.2^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.2 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://help.sonatype.com/en/sonatype-nexus-repository-3-95-0-release-notes.html	Release Notes
https://support.sonatype.com/hc/en-us/articles/53849535836179/	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:sonatype:nexus_repository_manager:*:*:*:*:*:*:*:*

History

22 Sep 2026, 17:03

Type	Values Removed	Values Added
First Time		Sonatype Sonatype nexus Repository Manager
CPE		cpe:2.3:a:sonatype:nexus_repository_manager::::::::
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 7.2
References	~~() https://help.sonatype.com/en/sonatype-nexus-repository-3-95-0-release-notes.html -~~	() https://help.sonatype.com/en/sonatype-nexus-repository-3-95-0-release-notes.html - Release Notes
References	~~() https://support.sonatype.com/hc/en-us/articles/53849535836179/ -~~	() https://support.sonatype.com/hc/en-us/articles/53849535836179/ - Vendor Advisory

Information

Published : 2026-08-07 17:16

Updated : 2026-09-22 17:03

NVD link : CVE-2026-17593

Mitre link : CVE-2026-17593

CVE.ORG link : CVE-2026-17593

JSON object : View

Products Affected

sonatype

nexus_repository_manager

CWE

CWE-470

Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection')

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(or the equivalent nexus:settings permission in the legacy Nexus Repository 2) could submit arbitrary values as realm identifiers through an internal configuration API that did not validate them against the set of registered realms. Because unrecognized entries were persisted and re-evaluated on every realm load via a legacy code path, this could result in unintended code executing inside the Nexus Repository process, and in some cases a persistent authentication lockout that was not visible through the administrative UI."}], "lastModified": "2026-09-22T17:03:47.943", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:sonatype:nexus_repository_manager:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "68F60402-A5B6-48CC-9DB2-0C18FFC7379F", "versionEndExcluding": "3.95.0", "versionStartIncluding": "2.8.0"}], "operator": "OR"}]}], "sourceIdentifier": "103e4ec9-0a87-450b-af77-479448ddef11"}