Cyber Security News

Hacking Editorial Brief — June 11, 2026

Active Exploitation of Langflow RCE Vulnerability Targets AI Development Platforms

Attackers are actively exploiting CVE-2026-5027, a high-severity path traversal vulnerability in Langflow, an AI development platform used for building large language model applications. The unpatched flaw enables unauthenticated remote code execution, with approximately 7,000 publicly exposed instances identified as potential targets. The exploitation campaign highlights growing threat actor interest in AI development infrastructure, following yesterday's disclosure of Meta's AI tool vulnerability and the GitHub supply chain incident. Organizations deploying Langflow should immediately implement network-level protections until patches become available.

Critical Veeam RCE and Windows Zero-Day Released; Russian National Charged in US

Veeam released emergency patches for CVE-2026-44963, a critical remote code execution vulnerability (CVSS 9.4) in Backup & Replication that allows authenticated domain users to execute arbitrary code on backup servers. Separately, security researcher Nightmare Eclipse released a proof-of-concept exploit called "RoguePlanet" for a Windows zero-day affecting Microsoft Defender, enabling local privilege escalation through a race condition just hours after Microsoft's Patch Tuesday. In law enforcement developments, the US Justice Department charged a suspected Russian hacker now in custody following his Thailand arrest, though specific campaign details were not disclosed. The Veeam vulnerability poses significant risk to enterprise backup infrastructure, while the public Windows zero-day release accelerates exploitation timelines before widespread patching occurs.

Sources: The Hacker News · Bleeping Computer · The Hacker News · Security Week · Channel News Asia