{"id":17904,"date":"2026-09-07T04:30:42","date_gmt":"2026-09-06T20:30:42","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-82209"},"modified":"2026-09-07T04:30:42","modified_gmt":"2026-09-06T20:30:42","slug":"cve-2026-82209","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-82209","title":{"rendered":"CVE-2026-82209 &#8211; When libpsl support is enabled, libcurl fails to enforce the Public Suffix\nList boundary c"},"content":{"rendered":"<p>When libpsl support is enabled, libcurl fails to enforce the Public Suffix<br \/>\nList boundary check when processing a `Set-Cookie` header where the `Domain`<br \/>\nattribute explicitly matches an origin host that is itself a public suffix<br \/>\n(e.g., `Domain=co.uk` set by `co.uk`).<\/p>\n<p>Instead of coercing it into a strict host-only cookie, libcurl saves the<br \/>\ncookie with wildcard domain scope (`.co.uk`). Consequently, the cookie is<br \/>\ninappropriately included in subsequent outbound requests or HTTP redirects to<br \/>\narbitrary sibling subdomains under the same public suffix (e.g.,<br \/>\n`attacker.co.uk`).<\/p>\n","protected":false},"excerpt":{"rendered":"<p>When libpsl support is enabled, libcurl fails to enforce the Public Suffix<br \/>\nList boundary check when processing a `Set-Cookie` header where the `Domain`<br \/>\nattribute explicitly matches an origin host that<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-17904","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/17904","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=17904"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=17904"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=17904"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}