[ CVE-2026-90800 · Published 20 Oct 2026 ]
Vulnerability in Apache Software Foundation Apache CouchDB
CVSS 8.1
EPSS <1%No fix listed yet
[ Description ]Official description
Missing authorisation checks in chttpd in Apache CouchDB 3.5.2 and below on all platforms allows any request to read the full contents of a prefixed _user or _replicator database via an unauthorised API endpoint. The use of prefixed system databases is very rare. Users are recommended to upgrade to version 3.5.3, which fixes this issue.
[ Fixes ]Fixes and patches
No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.