CVE-2026-117553Published

Umbraco CMS before 17.7.2 and 18.2.2 Account Takeover via Host Header Poisoning

Exact source revision recorded 27 Oct 2026 15:09:21 UTC. It does not establish the source's current position. Latest evidence.

Recorded JSON

cve-program · CVE-2026-117553

Published

Umbraco.Cms

NuGet

Original vendor version evidence · not evaluated as a NuGet range

{
                    "vendor": "umbraco",
                    "product": "Umbraco-CMS",
                    "defaultStatus": "unaffected",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "0",
                            "lessThan": "17.7.2",
                            "versionType": "semver"
                        },
                        {
                            "status": "affected",
                            "version": "18.0.0",
                            "lessThan": "18.2.2",
                            "versionType": "semver"
                        }
                    ],
                    "packageURL": "pkg:nuget/Umbraco.Cms"
                }

Original source record · Cite this exact observation · Complete original publisher JSON