CVE-2026-17594: CWE-863 Incorrect Authorization in Sonatype Nexus Repository 3
Nexus Repository 3 CE/Pro versions 3.0.0 through 3.94.x contain an incorrect authorization vulnerability (CWE-863) in the repository-creation user interface. An individual user account holding a delegated repository-admin privilege scoped to a specific repository format could create a repository of a different, unauthorized format, because authorization was checked against one request field while a separate, attacker-controlled field determined the repository format actually created. This does not affect the anonymous user, which cannot hold this privilege by default. Fixed in version 3.95.0.
AI Analysis
Technical Summary
CVE-2026-17594 is an incorrect authorization vulnerability in Sonatype Nexus Repository 3 CE/Pro versions 3.0.0 through before 3.95.0. The flaw occurs because authorization is checked against one request field while the repository format is determined by a separate, attacker-controlled field. This allows a user with delegated repository-admin privileges limited to a specific repository format to create repositories of other, unauthorized formats. Anonymous users are not affected as they cannot hold this privilege by default. The vulnerability is fixed in version 3.95.0.
Potential Impact
An attacker with delegated repository-admin privileges scoped to a specific repository format can create repositories of unauthorized formats, potentially bypassing intended access controls. This could lead to unauthorized repository creation and associated risks depending on repository format capabilities. Anonymous users are not affected.
Mitigation Recommendations
Upgrade to Nexus Repository 3 version 3.95.0 or later, where this vulnerability is fixed. No other official remediation or temporary fixes are documented. Patch status is confirmed by the vendor advisory stating the fix in 3.95.0.
CVE-2026-17594: CWE-863 Incorrect Authorization in Sonatype Nexus Repository 3
Description
Nexus Repository 3 CE/Pro versions 3.0.0 through 3.94.x contain an incorrect authorization vulnerability (CWE-863) in the repository-creation user interface. An individual user account holding a delegated repository-admin privilege scoped to a specific repository format could create a repository of a different, unauthorized format, because authorization was checked against one request field while a separate, attacker-controlled field determined the repository format actually created. This does not affect the anonymous user, which cannot hold this privilege by default. Fixed in version 3.95.0.
CVSS v4.0
Score 8.2high
Affected software
pkg:maven/com.sonatype.nexus/nexus-repository-managercpe:2.3:a:sonatype:nexus_repository_manager:3.0.0:*:*:*:*:*:*:*cpe:2.3:a:sonatype:nexus_repository_manager:3.0.1:*:*:*:*:*:*:*cpe:2.3:a:sonatype:nexus_repository_manager:3.0.2:*:*:*:*:*:*:*cpe:2.3:a:sonatype:nexus_repository_manager:3.1.0:*:*:*:*:*:*:*cpe:2.3:a:sonatype:nexus_repository_manager:3.2.0:*:*:*:*:*:*:*cpe:2.3:a:sonatype:nexus_repository_manager:3.2.1:*:*:*:*:*:*:*Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-17594 is an incorrect authorization vulnerability in Sonatype Nexus Repository 3 CE/Pro versions 3.0.0 through before 3.95.0. The flaw occurs because authorization is checked against one request field while the repository format is determined by a separate, attacker-controlled field. This allows a user with delegated repository-admin privileges limited to a specific repository format to create repositories of other, unauthorized formats. Anonymous users are not affected as they cannot hold this privilege by default. The vulnerability is fixed in version 3.95.0.
Potential Impact
An attacker with delegated repository-admin privileges scoped to a specific repository format can create repositories of unauthorized formats, potentially bypassing intended access controls. This could lead to unauthorized repository creation and associated risks depending on repository format capabilities. Anonymous users are not affected.
Mitigation Recommendations
Upgrade to Nexus Repository 3 version 3.95.0 or later, where this vulnerability is fixed. No other official remediation or temporary fixes are documented. Patch status is confirmed by the vendor advisory stating the fix in 3.95.0.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Sonatype
- Date Reserved
- 2026-07-27T16:30:02.752Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a760745bf8831d5399dca75
Added to database: 08/07/2026, 16:26:45 UTC
Last enriched: 08/07/2026, 16:41:35 UTC
Last updated: 08/07/2026, 19:02:40 UTC
Views: 7
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