{"action":"Upgrade libapache2-mod-auth-mellon to 0.18.0-1 or later.","affected":[{"fixed":"0.18.0-1","introduced":"0"}],"component":"libapache2-mod-auth-mellon","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["0.18.0-1"],"id":"tcs_01M5NFTF9B91JAYDEQEXN5NG2S","modified_at":"2026-10-23T18:04:50.917292623Z","published_at":"2022-08-22T15:15:13.633Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2021-3639","https://security-tracker.debian.org/tracker/CVE-2021-3639"],"severity":{"label":"medium","score":6.1},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2021-3639#Debian:14/libapache2-mod-auth-mellon","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2021-3639"}],"summary":"A flaw was found in mod_auth_mellon where it does not sanitize logout URLs properly. This issue could be used by an attacker to facilitate phishing attacks by tricking users into visiting a trusted we"}