libtasn1: Inefficient DER Decoding in libtasn1 Leading to Potential Remote DoS

A flaw in libtasn1 causes inefficient handling of specific certificate data. When processing a large number of elements in a certificate, libtasn1 takes much longer than expected, which can slow down or even crash the system. This flaw allows an attacker to send a specially crafted certificate,...

CVE-2026-30884

mdjnelson/moodle-modcustomcert is a Moodle plugin for creating dynamically generated certificates with complete customization via the web browser. Prior to versions 4.4.9 and 5.0.3, a teacher who holds mod/customcert:manage in any single course can read and silently overwrite certificate elements...

CVE-2026-30884 mdjnelson/moodle-mod_customcert Vulnerable to Authorization Bypass Through User-Controlled Key

mdjnelson/moodle-modcustomcert is a Moodle plugin for creating dynamically generated certificates with complete customization via the web browser. Prior to versions 4.4.9 and 5.0.3, a teacher who holds mod/customcert:manage in any single course can read and silently overwrite certificate elements...

CVE-2026-30884

CVE-2026-30884 affects the Moodle plugin mdjnelson/moodle-mod_customcert . Prior to versions 4.4.9 and 5.0.3, a teacher with the mod/customcert:manage capability in any single course can read and silently overwrite certificate elements for other courses. The vulnerability arises because the core_...

libtasn1 安全漏洞

libtasn1 is a small ASN.1 library open-sourced by gnutls. A security vulnerability exists in libtasn1 that stems from taking much longer than expected to process a large number of elements in a certificate, which could cause the system to slow down or even crash...