PaperCut Issues Second Emergency Patch for Actively Exploited RCE Vulnerabilities

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PaperCut has released a second emergency patch addressing two critical flaws, CVE-2026-81578 and CVE-2026-82078, affecting its MF and NG print management software. The vulnerabilities chain an authentication bypass with insecure dynamic class loading, allowing unauthenticated attackers to execute Java code with SYSTEM-level privileges on the server. The initial fix left residual bypass vectors, making the Release 2 update mandatory for full remediation. Active exploitation has been confirmed, with attackers observed stealing credentials, deploying additional payloads, and moving laterally within networks. Administrators are urged to apply Release 2 immediately and restrict management interface access to trusted IPs or VPNs.

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Power Users Turn on AI Coding Tools Over Billing, UI Chaos and Hidden Nudges

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ProgrammingDEV Community ·

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ProgrammingDEV Community ·

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ProgrammingDEV Community ·

How Client Islands Keep WebSockets Efficient in React Server Components

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