{"cve":"CVE-2026-44511","nvd":{"published":"2026-05-14T17:16:22.760","modified":"2026-10-26T00:10:00.150","status":"Deferred","description":"Katalyst Koi is a framework for building Rails admin functionality. Prior to 4.20.0 and 5.6.0, admin session cookies were not invalidated when an admin user logged out. An attacker with access to a valid admin session cookie could continue to access admin functionality after logout, until the cookie expired or session secrets were rotated. This vulnerability is fixed in 4.20.0 and 5.6.0.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","score":7.4},"cwes":["CWE-613"],"references":["https://github.com/katalyst/koi/security/advisories/GHSA-4cx3-3c38-j9vv"],"products":[],"source":"nvd","synced_at":"2026-10-26T00:31:35.753532240+00:00"},"epss":{"cve":"CVE-2026-44511","score":0.00197,"percentile":0.09338,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-4cx3-3c38-j9vv","url":"https://osv.dev/vulnerability/GHSA-4cx3-3c38-j9vv","summary":"katalyst-koi: Session cookies can be replayed after user logout","modified":"2026-05-29T22:00:13.162999427Z","packages":[{"ecosystem":"RubyGems","name":"katalyst-koi","purl":"pkg:gem/katalyst-koi","ranges":["<4.20.0"],"fixed":["4.20.0"]},{"ecosystem":"RubyGems","name":"katalyst-koi","purl":"pkg:gem/katalyst-koi","ranges":[">=5.0.0 <5.6.0"],"fixed":["5.6.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}