CVE-2026-90800 Details
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.
A vulnerability exists in Apache CouchDB versions 3.5.2 and earlier on all platforms, where missing authorization checks in the 'chtpd' component allow unauthorized access to read the full contents of prefixed '_user' or '_replicator' databases through an unapproved API endpoint. The occurrence of prefixed system databases is quite rare.
Users are advised to upgrade to Apache CouchDB version 3.5.3, which addresses this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 20, 2026CISA-ADP
Assessed Oct 20, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| http://www.openwall.com/lists/oss-security/2026/10/20/15 | CVE | AdvisoryMailing List |
| https://lists.apache.org/thread.html/pj83174r8f8f64odf47fwhozbfjtot0f | [email protected] | AdvisoryBundleMailing ListVendor |
| https://lists.apache.org/thread/vng8vqjwgy1qlrv14wzrgs7pv4gj7gwr | [email protected] | AdvisoryMailing ListRemedyVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-862 | Missing Authorization | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| Apache CouchDB | < 3.5.3 (semver) |
CPE
Remediation
| |
Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Oct 20, 2026 | CVE Modified | CVE |
| Oct 20, 2026 | CVE Modified | CISA-ADP |
| Oct 20, 2026 | New CVE Received | [email protected] |
Volerion