CVE-2026-90800 (GCVE-0-2026-90800)

Vulnerability from cvelistv5 – Published: 2026-10-20 15:40 – Updated: 2026-10-20 18:10
VLAI
Title
Apache CouchDB: Auth bypass in prefixed _users and _replicator databases
Summary
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.
Severity
8.1 (High)
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N/E:U/S:N/AU:Y/R:U/V:C/RE:M/U:Amber
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-20 16:57 UTC
CWE
Assigner
apache CNA under the mitre root
CNA scorecard B 76/100 over 1068 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Apache Software Foundation Apache CouchDB Affected: 0 , < 3.5.3 (semver)
guessed Create a notification for this product.
Credits
Qing Xu & ZeroVuln Labs reported this issue independently
Show details on NVD website
To clipboard 

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