{"id":"CVE-2026-48911","summary":"Apache Answer: Unauthenticated OAuth Email-Binding Account Takeover via Existing User Confirmation Flow","details":"Insufficient Verification of Data Authenticity vulnerability in Apache Answer.\n\nThis issue affects Apache Answer: through 2.0.1.\n\nA missing authorization check in the external-login email binding flow allows unauthenticated attackers to take over arbitrary user accounts by tricking victims into clicking a crafted confirmation link.\nUsers are recommended to upgrade to version 2.0.2, which fixes the issue.","modified":"2026-08-12T03:51:11.989764107Z","published":"2026-08-05T15:09:14.961Z","database_specific":{"cna_assigner":"apache","cwe_ids":["CWE-306"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/48xxx/CVE-2026-48911.json","unresolved_ranges":[{"source":"AFFECTED_FIELD","extracted_events":[{"last_affected":"2.0.1"}]},{"source":"DESCRIPTION","extracted_events":[{"fixed":"2.0.1"}]}]},"references":[{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2026/08/05/10"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/48xxx/CVE-2026-48911.json"},{"type":"ADVISORY","url":"https://lists.apache.org/thread/mrlwtdnhqqgfbchjgq6rffkz67o8wyv8"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-48911"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/apache/answer","events":[{"introduced":"0"},{"fixed":"3b9f1370612e690a0b7f230f05e688930db4c6d3"}],"database_specific":{"cpe":"cpe:2.3:a:apache:answer:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"fixed":"2.0.2"}],"source":"CPE_RANGE"}}],"versions":["v2.0.2-RC2","v2.0.2-RC1","v2.0.1-RC2","v2.0.1","v2.0.1-RC1","v2.0.0-RC2","v2.0.0","v2.0.0-RC1","v1.7.0-RC1","v1.7.0","v1.6.0","v1.6.0-RC1","v1.2.1-RC1","v1.2.1","v1.2.0-RC1","v1.2.0","v1.1.3","v1.1.2","v1.1.1","v1.0.9","v1.0.8","v1.0.7","v1.0.6","v1.0.5","v1.0.4","v1.0.3","v1.0.1","v0.4.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-48911.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"}]}