{"id":"CVE-2026-86471","title":"Apache CouchDB: Admin credentials leading to code execution as operating system user","summary":"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.\n\nUsers are recommended to upgrade to versio…","severity":"critical","cvss":9.3,"cvssVector":"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","cvssSource":"cna","vendor":"Apache Software Foundation","product":"Apache CouchDB","affected":["apache_couchdb < 3.5.3"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-20T16:54:35.806498Z"},"published":"2026-10-20","updated":"2026-10-20","sourceUpdated":"2026-10-20T18:10:04.288Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-86471","references":[{"url":"https://lists.apache.org/thread.html/pj83174r8f8f64odf47fwhozbfjtot0f"},{"url":"https://lists.apache.org/thread/c8p73gswgogtnzvk7hpw8jb8d4mnosdp"}],"tags":["cve.org"],"ingestedAt":"2026-10-20T16:10:53.307Z","slug":"CVE-2026-86471","body":"## Overview\n\nAn 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.\n\nUsers are recommended to upgrade to version 3.5.3, which fixes this issue.\n\n## Affected\n\n- `apache_couchdb < 3.5.3`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":51,"depthScoreParts":{"impact":51.2,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}