{"id":26153,"date":"2026-09-18T08:32:20","date_gmt":"2026-09-18T00:32:20","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-86049"},"modified":"2026-09-18T08:32:20","modified_gmt":"2026-09-18T00:32:20","slug":"cve-2026-86049","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-86049","title":{"rendered":"CVE-2026-86049 [HIGH] &#8211; Jupyter Server is the backend for Jupyter web applications. Prior to version 2.21.0, the 5"},"content":{"rendered":"<p>Jupyter Server is the backend for Jupyter web applications. Prior to version 2.21.0, the 5xx request logging path in jupyter_server\/log.py copies the Referer header into a JSON header block without applying the token scrubbing used for the request URI. A request that returns HTTP 500 while the Referer contains a token-bearing URL can therefore write that token to server logs in plaintext. An attacker who can read those logs can recover the token and use the affected user&#8217;s Jupyter Server permissions. This issue is fixed in version 2.21.0.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Jupyter Server is the backend for Jupyter web applications. Prior to version 2.21.0, the 5xx request logging path in jupyter_server\/log.py copies the Referer header into a JSON header block without ap<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-26153","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/26153","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=26153"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=26153"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=26153"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}