Attackers Exploit SimpleHelp CVE-2026-48558 to Deploy TaskWeaver and Djinn Stealer
Jun 30, 2026
AI Security / Vulnerability
An unknown threat actor has been observed exploiting a recently disclosed maximum-severity security flaw in SimpleHelp to deliver two previously unreported malware families, TaskWeaver and Djinn Stealer . The intrusion involves the exploitation of CVE-2026-48558 (CVSS score: 10.0), a critical authentication bypass vulnerability impacting the OpenID Connect (OIDC) flow that an unauthenticated attacker could exploit to obtain a fully authenticated "Technician session by submitting a forged token containing arbitrary identity claims. "TaskWeaver is a heavily obfuscated Node.js loader, delivered as jquery.js and executed through node.exe, that implements an encrypted, reusable payload delivery channel rather than a fixed set of post exploitation commands," Blackpoint Cyber said in an analysis. "The observed second stage payload, Djinn Stealer, targets Windows, macOS, and Linux systems." Djinn Stealer is designed to harvest credentials associated with cloud...
