CVE-2026-111624: Umbraco CMS before 17.7.1 and 18.2.1 Missing Authorization on SignalR Hubs

Umbraco CMS before 17.7.1 and 18.2.1 Missing Authorization on SignalR Hubs

Exact source revision recorded 23 Oct 2026 15:48:27 UTC. It does not establish the source's current position. Latest evidence.

Umbraco-CMS

Vendor product

Original vendor version evidence · not evaluated as a NuGet range

{
                    "vendor": "umbraco",
                    "product": "Umbraco-CMS",
                    "defaultStatus": "unaffected",
                    "versions": [
                        {
                            "version": "17.0.0",
                            "lessThan": "17.7.1",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "18.0.0",
                            "lessThan": "18.2.1",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ],
                    "packageURL": "pkg:github/umbraco/Umbraco-CMS",
                    "repo": "https://github.com/umbraco/Umbraco-CMS"
                }

cve-program · CVE-2026-111624

Umbraco-CMS