tag
Preauth
nginx PCRE Capture Variable Heap Overflow to Pre-Auth RCE (CVE-2026-42533)
CVE-2026-42533 is a heap buffer overflow in nginx triggered by PCRE regex capture variable handling. When two map directives share the same capture group name, a length/value mismatch occurs in the internal variable copy code (ngxhttpscriptcopycapturecode and…
Citrix NetScaler ADC/Gateway -- Pre-Auth SAML PrefixList Heap Overflow to RCE (CVE-2026-8452)
CVE-2026-8452 is a pre-authentication heap buffer overflow in the Citrix NetScaler ADC and Gateway SAML authentication handler. The vulnerability exists in the XML Signature Canonicalization (C14N) processing of the PrefixList attribute within SAML responses.…
GitLab Unauthenticated RCE via Workhorse Pre-Auth Upload into ExifTool DjVu Injection (CVE-2021-22205)
GitLab Workhorse intercepts multipart file uploads and strips image metadata by shelling out to ExifTool before the request is routed to Rails and therefore before any authentication or authorization decision is made. ExifTool in turn contained…
CyberPanel Pre-Auth Remote Code Execution via getresetstatus Command Injection (CVE-2024-51378)
CyberPanel exposes two DNS/FTP reset-status endpoints, /dns/getresetstatus and /ftp/getresetstatus, whose handlers read a JSON statusfile property straight out of the request body and concatenate it into a shell command executed with sudo. Neither handler…
Craft CMS Pre-Auth Remote Code Execution via Session Poisoning + Yii2 PhpManager Gadget (CVE-2025-32432)
Craft CMS shipped an incomplete patch for the earlier CVE-2023-41892 deserialization RCE, leaving a critical, pre-auth code-injection chain exploitable through the assets/generate-transform action. An unauthenticated attacker first poisons the server-side PHP…