CVE-2026-55159 luci-app-adblock-fast: Delegated `luci-app-adblock-fast` users can reach root command execution by injecting newline-separated cron entries

luci-app-adblock-fast a WebUI for fast, lightweight DNS-based ad-blocker for OpenWrt that works with dnsmasq, smartdns, or unbound. Prior to 1.2.4-2, the luci.adblock-fast.setCronEntry RPC method accepts an entry argument containing carriage-return or line-feed characters and serializes it into...

CVE-2026-55159

CVE-2026-55159 affects luci-app-adblock-fast , a WebUI for a DNS-based ad-blocker on OpenWrt (compatible with dnsmasq, smartdns, or unbound). Prior to 1.2.4-2 , the luci.adblock-fast.setCronEntry RPC method fails to sanitize carriage-return or line-feed characters in its entry argument, serializi...