Information disclosure in Openremote
CVE-2026-81679
OpenRemote versions before 1.28.0 contain a cross-realm information disclosure vulnerability in the Notification REST API that allows per-realm tenant administrators to read all tenants' sent notifications including message bodies. Attackers with read:admin credentials in one realm can submit a zero-parameter GET request to the notification endpoint to retrieve sensitive notification metadata and message content from all realms.
Vulnerability class: Information Disclosure
CVSS v3 metric
CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N.
Affected products
Weakness classification (CWE)
References
- disclosure@vulncheck.com (vendor-advisory)
- disclosure@vulncheck.com (third-party-advisory)
Frequently asked questions
- What is CVE-2026-81679?
- CVE-2026-81679 is a high-severity vulnerability in Openremote, classified under Information Disclosure. CVSS score: 7.7/10. Published 2026-08-27.
- How severe is CVE-2026-81679?
- High severity. CVSS v3 base score is 7.7 out of 10.