CVE-2026-77124: CWE-184 Incomplete List of Disallowed Inputs in Sonatype Nexus Repository 3
Description
In affected versions of Nexus Repository 3, the script execution endpoint (POST /service/rest/v1/script/{name}/run) did not verify whether script execution had been administratively disabled. An account holding script-execution permission could continue to run previously-created scripts even after an administrator set nexus.scripts.allowCreation=false, undermining the expectation that this setting fully blocks script execution.
CVSS v4.0
Score 7.5high
Affected software
Sonatype
Nexus Repository 3
cpe:2.3:a:sonatype:nexus_repository_manager:3.21.2:*:*:*:*:*:*:*cpe:2.3:a:sonatype:nexus_repository_manager:3.22.0:*:*:*:*:*:*:*cpe:2.3:a:sonatype:nexus_repository_manager:3.22.1:*:*:*:*:*:*:*cpe:2.3:a:sonatype:nexus_repository_manager:3.23.0:*:*:*:*:*:*:*cpe:2.3:a:sonatype:nexus_repository_manager:3.24.0:*:*:*:*:*:*:*cpe:2.3:a:sonatype:nexus_repository_manager:3.24.1:*:*:*:*:*:*:*Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
In Nexus Repository 3 version 3.21.2, the POST /service/rest/v1/script/{name}/run endpoint fails to verify if script execution has been administratively disabled via the nexus.scripts.allowCreation setting. Consequently, users with script-execution permission can continue to execute existing scripts despite the administrative configuration intended to block script execution. This represents an incomplete enforcement of disallowed inputs and controls, classified under CWE-184 (Incomplete List of Disallowed Inputs).
Potential Impact
The vulnerability allows users with script-execution permission to bypass the administrative setting that disables script execution, potentially enabling unauthorized script runs. This undermines the security posture by allowing script execution when it was expected to be fully blocked, which could lead to unauthorized actions or privilege escalation within the Nexus Repository environment.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, administrators should review and restrict script-execution permissions carefully and monitor for unauthorized script usage. There is no indication that the vendor has provided an official fix or temporary workaround at this time.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Sonatype
- Date Reserved
- 2026-08-20T13:00:26.923Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6a985b8aacd9273b49838335
Added to database: 09/02/2026, 17:23:22 UTC
Last enriched: 09/07/2026, 13:34:28 UTC
Last updated: 10/17/2026, 18:48:22 UTC
Views: 83
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