CVE-2026-86471

Apache CouchDB: Admin credentials leading to code execution as operating system user

Published Oct 20, 2026 CVSS 4.0 · 9.3 Critical EPSS < 1% KEV · Not listed
Description
An unvalidated runtime configuration value in Apache CouchDB 3.5.2 and below on all platforms allows a CouchDB server admin to run arbitrary shell commands as the CouchDB operating system user.

Users are recommended to upgrade to version 3.5.3, which fixes this issue.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Apache
Apache couchdb
Vendors & Products Apache
Apache couchdb
Type Values Removed Values Added
Weaknesses CWE-77
CWE-94
Type Values Removed Values Added
Weaknesses CWE-77
CWE-94
Type Values Removed Values Added
Weaknesses CWE-78
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description An unvalidated runtime configuration value in Apache CouchDB 3.5.2 and below on all platforms allows a CouchDB server admin to run arbitrary shell commands as the CouchDB operating system user. Users are recommended to upgrade to version 3.5.3, which fixes this issue.
Title Apache CouchDB: Admin credentials leading to code execution as operating system user
References
Metrics cvssV4_0

{'score': 9.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:L/SC:H/SI:H/SA:L/E:A/S:N/AU:Y/R:U/V:C/RE:M/U:Red'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
apache
Published
Updated
Oct 21, 2026, 3:56 AM
Reserved
Sep 7, 2026, 2:53 PM
Status
Deferred
Published
Oct 20, 2026, 4:17 PM
Modified
Oct 21, 2026, 4:18 AM