{"id":"AZL-36962","summary":"CVE-2021-3639 affecting package mod_auth_mellon for versions less than 0.16.0-4","details":"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 web application URL that redirects to an external and potentially malicious server. The highest threat from this liability is to confidentiality and integrity.","modified":"2026-04-21T04:25:26.252934Z","published":"2022-08-22T15:15:13Z","upstream":["CVE-2021-3639"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-3639"}],"affected":[{"package":{"name":"mod_auth_mellon","ecosystem":"Azure Linux:3","purl":"pkg:rpm/azure-linux/mod_auth_mellon"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.16.0-4"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-36962.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"}]}