cbcvebase.
CVE-2026-90800
published 2026-10-20

CVE-2026-90800: 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…

PriorityP353high8.1CVSS 4.0
AVNACLATPPRNUINVCHVIHVANSCHSIHSANEUCRXIRXARXMAVXMACXMATXMPRXMUIXMVCXMVIXMVAXMSCXMSIXMSAXSNAUYRUVCREMUAmber
EPSS
0.63%
49.7th percentile
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.

Affected

1 ranges
VendorProductVersion rangeFixed in
apache_software_foundationapache_couchdb< 3.5.33.5.3
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