GitLab has remediated an issue in GitLab EE affecting all versions from 18.4 before 18.4.3, and 18.5 before 18.5.1 that under certain conditions could have allowed authenticated users to gain unauthorized project access by exploiting the access request approval workflow.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - GitLab has remediated an issue in GitLab EE affecting all versions from 18.4 before 18.4.3, and 18.5     before 18.5.1 that under certain conditions could have allowed authenticated users to gain unauthorized     project access by exploiting the access request approval workflow. (CVE-2025-6601)

Note that Nessus relies on the presence of the package as reported by the vendor.

The version of GitLab installed on the remote host is affected by a vulnerability, as follows:

  - Gitlab reports: Improper access control issue in runner API impacts GitLab EE Denial of service issue in     event collection impacts GitLab CE/EE Denial of service issue in JSON validation impacts GitLab CE/EE     Denial of service issue in upload impacts GitLab CE/EE Incorrect Authorization issue in pipeline builds     impacts GitLab CE Business logic error issue in group memberships impacts GitLab EE Missing authorization     issue in quick actions impacts GitLab EE (CVE-2025-6601)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the f741ea93-af61-11f0-98b5-2cf05da270f3 advisory.

    Gitlab reports:
    Improper access control issue in runner API impacts GitLab EE     Denial of service issue in event collection impacts GitLab CE/EE     Denial of service issue in JSON validation impacts GitLab CE/EE     Denial of service issue in upload impacts GitLab CE/EE     Incorrect Authorization issue in pipeline builds impacts GitLab CE     Business logic error issue in group memberships impacts GitLab EE     Missing authorization issue in quick actions impacts GitLab EE

Tenable has extracted the preceding description block directly from the FreeBSD security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
276865	Linux Distros Unpatched Vulnerability : CVE-2025-6601	Nessus	Misc.	medium
271496	GitLab 18.4 < 18.4.3 / 18.5 < 18.5.1 (CVE-2025-6601)	Nessus	CGI abuses	low
271254	FreeBSD : Gitlab -- vulnerabilities (f741ea93-af61-11f0-98b5-2cf05da270f3)	Nessus	FreeBSD Local Security Checks	medium

Detections

Analytics

CVE-2025-6601

medium

Tenable Plugins

medium

low

medium