{"id":26209,"date":"2026-09-18T08:32:28","date_gmt":"2026-09-18T00:32:28","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-86688"},"modified":"2026-09-18T08:32:28","modified_gmt":"2026-09-18T00:32:28","slug":"cve-2026-86688","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-86688","title":{"rendered":"CVE-2026-86688 &#8211; Session Fixation vulnerability in team-alembic ash_authentication allows an attacker who c"},"content":{"rendered":"<p>Session Fixation vulnerability in team-alembic ash_authentication allows an attacker who can plant a session identifier in a victim&#8217;s browser to hold an authenticated session once that victim signs in.<\/p>\n<p>AshAuthentication.Plug.Helpers.store_in_session\/2 writes the authenticated subject into the existing session with Plug.Conn.put_session\/3 and never calls Plug.Conn.configure_session(renew: true), so the identifier the visitor arrived with carries into their authenticated session. Every authentication event reaches this one function: the default success\/4 injected by AshAuthentication.Phoenix.Controller.__using__\/1, the AuthController emitted by mix ash_authentication_phoenix.install, and remember-me auto-login. AshAuthentication.Phoenix.Plug.store_in_session\/2 is a defdelegate to it. Logout does not close the window either, because clear_session\/2 ends with Plug.Conn.clear_session\/1, which clears session contents but leaves the identifier intact, so a planted identifier survives a logout-then-login cycle.<\/p>\n<p>This issue affects ash_authentication: from 0.2.0 before 4.15.0 and from 5.0.0-rc.0 before 5.0.0-rc.14.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Session Fixation vulnerability in team-alembic ash_authentication allows an attacker who can plant a session identifier in a victim&#8217;s browser to hold an authenticated session once that victim signs in<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-26209","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/26209","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln"}],"about":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/types\/vuln"}],"wp:attachment":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=26209"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=26209"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=26209"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}