{"id":28123,"date":"2026-09-24T04:31:44","date_gmt":"2026-09-23T20:31:44","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-77421"},"modified":"2026-09-24T04:31:44","modified_gmt":"2026-09-23T20:31:44","slug":"cve-2026-77421","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-77421","title":{"rendered":"CVE-2026-77421 [MEDIUM] &#8211; JLine is a Java library for handling console input. From 3.0.0 until 3.30.15 and 4.3.1, th"},"content":{"rendered":"<p>JLine is a Java library for handling console input. From 3.0.0 until 3.30.15 and 4.3.1, the JLine built-in nano editor&#8217;s regex search mode passes a user-controlled search term from doSearch(String text) in builtins\/src\/main\/java\/org\/jline\/builtins\/Nano.java to Java&#8217;s backtracking regular expression engine without a timeout or backtracking bound. A nested-quantifier expression evaluated against non-matching buffer content can consume excessive CPU and indefinitely block the editor session thread, and remote multi-user deployments can lose a worker thread for each affected session. This issue is fixed in versions 3.30.15 and 4.3.1.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>JLine is a Java library for handling console input. From 3.0.0 until 3.30.15 and 4.3.1, the JLine built-in nano editor&#8217;s regex search mode passes a user-controlled search term from doSearch(String tex<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-28123","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/28123","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=28123"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=28123"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=28123"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}