GitLab has remediated an issue in GitLab CE/EE affecting all versions from 9.2 before 18.7.5, 18.8 before 18.8.5, and 18.9 before 18.9.1 that could have allowed an unauthenticated user to cause regular expression denial of service by sending specially crafted input to a merge request endpoint under certain conditions.

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 102a03c9-1316-11f1-93ca-2cf05da270f3 advisory.

    Gitlab reports:
    Cross-site Scripting issue in Mermaid sandbox impacts GitLab CE/EE     Denial of Service issue in container registry impacts GitLab CE/EE     Denial of Service issue in Jira events endpoint impacts GitLab CE/EE     Regular Expression Denial of Service issue in GitLab merge requests impacts GitLab CE/EE     Missing rate limit in Bitbucket Server importer impacts GitLab CE/EE     Denial of Service issue in CI trigger API impacts GitLab CE/EE     Denial of Service issue in token decoder impacts GitLab CE/EE     Improper Access Control issue in Conan package registry impacts GitLab EE     Access Control issue in CI job mutation impacts GitLab CE/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.

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 CE/EE affecting all versions from 9.2 before 18.7.5, 18.8 before     18.8.5, and 18.9 before 18.9.1 that could have allowed an unauthenticated user to cause regular expression     denial of service by sending specially crafted input to a merge request endpoint under certain conditions.
    (CVE-2026-1388)

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:

  - Inefficient Regular Expression Complexity in GitLab (CVE-2026-1388)

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

ID	Name	Product	Family	Type	Severity
300135	FreeBSD : Gitlab -- vulnerabilities (102a03c9-1316-11f1-93ca-2cf05da270f3)	Nessus	FreeBSD Local Security Checks	Local	medium
300132	Linux Distros Unpatched Vulnerability : CVE-2026-1388	Nessus	Misc.	Local	high
300125	GitLab 9.2 < 18.7.5 / 18.8 < 18.8.5 / 18.9 < 18.9.1 (CVE-2026-1388)	Nessus	CGI abuses	Combined	high

Detections

Analytics

CVE-2026-1388

high

Tenable Plugins

medium

high

high