Critical 9.3Published Oct 20, 2026

CVE-2026-86471Apache CouchDB: Admin credentials leading to code execution as operating system user

Updated under an hour ago (Oct 26, 2026, 6:40 PM ET)

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It affects Apache Software Foundation Apache CouchDB. Add what you run to find out whether that includes you.

EPSS puts the chance of exploitation in the next 30 days at 0.61%, higher than 48% of scored CVEs.

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Every CVE for Apache Software Foundation Apache CouchDB

Exploited in the last 30 days

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.

CVSS: 9.3 CRITICAL (v4.0, CNA)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
Weakness (CWE): CWE-78
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): 0.61% (percentile 48)
Assigned by: apache
NVD analysis: Deferred
Record last updated: Oct 20, 2026
First seen by InfoSec Signals: Oct 20, 2026

Affected products

Affected products

Apache Software Foundation Apache CouchDB apache_software_foundation:apache_couchdb (from the name)	before 3.5.3	CNA record

References

References

https://lists.apache.org/thread.html/pj83174r8f8f64odf47fwhozbfjtot0f	release-notes
https://lists.apache.org/thread/c8p73gswgogtnzvk7hpw8jb8d4mnosdp	vendor-advisory
http://www.openwall.com/lists/oss-security/2026/10/20/11

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.