CVE-2026-111624
CVE-2026-111624 · Umbraco CMS before 17.7.1 and 18.2.1 Missing Authorization on SignalR Hubs
Здесь приведены факты из открытых источников об уязвимостях. Перед обновлением ознакомьтесь с исходным сообщением.
Umbraco CMS before 17.7.1 and 18.2.1 contains a missing authorization vulnerability that allows unauthenticated clients to connect to the backoffice PreviewHub and BackofficeHub SignalR hubs. Attackers can complete the SignalR negotiate step and receive refreshed notifications that disclose content keys, including unpublished content, and reveal editorial activity timing.
CVSS 6.3 · Средний · EPSS 0,3% · Есть исправление
- Опубликовано
- Обновлено
Затронутые продукты и версии
umbraco-cms
- Версии
- ≥ 17.0.0, < 17.7.1: Затронуто (semver)
- ≥ 18.0.0, < 18.2.1: Затронуто (semver)
Обновитесь до 17.7.1; Обновитесь до 18.2.1
Первоисточники
- https://github.com/umbraco/Umbraco-CMS/security/advisories/GHSA-4c5q-6c64-96j7
- https://github.com/umbraco/Umbraco-CMS/blob/release-18.2.0/src/Umbraco.Cms.Api.Management/Preview/PreviewHub.cs#L9-L11
- https://github.com/umbraco/Umbraco-CMS/blob/release-18.2.0/src/Umbraco.Cms.Api.Management/Preview/PreviewHubUpdater.cs#L58
- https://github.com/umbraco/Umbraco-CMS/commit/b4f6cfc9d0955f9d8443e68353db4a692e91bd94
- https://github.com/umbraco/Umbraco-CMS/commit/243e082479c777d0f585bbd2f8db571607767b22
- https://github.com/umbraco/Umbraco-CMS/releases/tag/release-18.2.1
- https://github.com/umbraco/Umbraco-CMS/releases/tag/release-17.7.1
- https://www.vulncheck.com/advisories/umbraco-cms-before-17.7.1-and-18.2.1-missing-authorization-on-signalr-hubs
- https://nvd.nist.gov/vuln/detail/CVE-2026-111624