CVE-2026-77125

A vulnerability was identified in Sonatype Nexus Repository 3 in which two blobstore group management REST API endpoints did not correctly enforce the intended authorization check. A user granted only the nexus:blobstores:create permission could invoke these endpoints to convert an existing blobstore into a group blobstore, an action that should require the nexus:blobstores:update permission instead. This could result in unauthorized modification of blobstore configuration without administrator approval. The nexus:blobstores:create permission is a named permission that must be explicitly granted by an administrator; it is not held by default.

CVSS v3 7.1 HIGH

7.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 4.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://help.sonatype.com/en/sonatype-nexus-repository-3-96-0-release-notes.html	Release Notes
https://support.sonatype.com/hc/en-us/articles/54643114434451/	Vendor Advisory

Configurations

Configuration 1 (hide)

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

History

22 Sep 2026, 17:17

Type	Values Removed	Values Added
References	~~() https://help.sonatype.com/en/sonatype-nexus-repository-3-96-0-release-notes.html -~~	() https://help.sonatype.com/en/sonatype-nexus-repository-3-96-0-release-notes.html - Release Notes
References	~~() https://support.sonatype.com/hc/en-us/articles/54643114434451/ -~~	() https://support.sonatype.com/hc/en-us/articles/54643114434451/ - Vendor Advisory
CPE		cpe:2.3:a:sonatype:nexus_repository_manager::::::::
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 7.1
First Time		Sonatype Sonatype nexus Repository Manager

Information

Published : 2026-09-02 18:21

Updated : 2026-09-22 17:17

NVD link : CVE-2026-77125

Mitre link : CVE-2026-77125

CVE.ORG link : CVE-2026-77125

JSON object : View

Products Affected

sonatype

nexus_repository_manager

CWE

CWE-863

Incorrect Authorization

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A user granted only the nexus:blobstores:create permission could invoke these endpoints to convert an existing blobstore into a group blobstore, an action that should require the nexus:blobstores:update permission instead. This could result in unauthorized modification of blobstore configuration without administrator approval. The nexus:blobstores:create permission is a named permission that must be explicitly granted by an administrator; it is not held by default."}], "lastModified": "2026-09-22T17:17:56.897", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:sonatype:nexus_repository_manager:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "73716511-3BFE-4903-B2AF-9B345EEEE6DD", "versionEndExcluding": "3.96.0", "versionStartIncluding": "3.19.0"}], "operator": "OR"}]}], "sourceIdentifier": "103e4ec9-0a87-450b-af77-479448ddef11"}