Nexus Repository 3 Script exec endpoint bypass admin disable
CVE-2026-77124 Published on September 2, 2026
Nexus Repository 3 - Script Execution Disable Setting Not Enforced
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.
Vulnerability Analysis
CVE-2026-77124 is exploitable with network access, and requires user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity and availability.
Weakness Type
What is a Denylist / Deny List Vulnerability?
The product implements a protection mechanism that relies on a list of inputs (or properties of inputs) that are not allowed by policy or otherwise require other action to neutralize before additional processing takes place, but the list is incomplete, leading to resultant weaknesses. Developers often try to protect their products against malicious input by performing tests against inputs that are known to be bad, such as special characters that can invoke new commands. However, such lists often only account for the most well-known bad inputs. Attackers may be able to find other malicious inputs that were not expected by the developer, allowing them to bypass the intended protection mechanism.
CVE-2026-77124 has been classified to as a Denylist / Deny List vulnerability or weakness.
Products Associated with CVE-2026-77124
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Affected Versions
Sonatype Nexus Repository 3:- Version 3.21.2 and below 3.96.0 is affected.