HIGHCVSS v4 8.1Vulnerability

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 _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.

Properties

Severity
HIGH
Nvd fetched at
2026-10-20T21:14:08.448323+00:00
Cvss severity
HIGH
Cvss score
8.1
Retrieved at
2026-10-20T21:15:35+00:00
Score
8.1
Cvss version
4.0
Last source
NVD
Cve id
CVE-2026-90800
Cvss vector
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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:N/AU:Y/R:U/V:C/RE:M/U:Amber
First seen by Signal
2026-10-20T17:10:14+00:00
Vector
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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:N/AU:Y/R:U/V:C/RE:M/U:Amber
Published at
2026-10-20T16:17:16.033
Last modified
2026-10-20T19:34:00.700

Related Entities (1)

HAS_WEAKNESS (1)

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CVE-2026-90800 (CVSS v4 8.1) — Ninja Signal Threat Intelligence | Ninja Signal