Vulnerability | Breaking Cybersecurity News | The Hacker News

This week’s security news is mostly about weak spots. Browsers, bots, sandboxes, AI systems, and email flows all show the same problem in different ways. Everything looks normal until someone tests a small gap and finds a way through. This is not one big break. It is small permissions, weak checks, open systems, and normal tools doing things they were allowed to do. That same pattern runs through the stories below.

Security firm Sysdig says it has found what it believes is the first ransomware attack run from start to finish by an AI agent. Its Threat Research Team calls the operator JADEPUFFER and says a large language model handled the whole job: breaking in, stealing credentials, moving deeper into the network, then encrypting and wiping a company's production database. Ransomware has always needed a skilled person somewhere in the loop, either at the keyboard or writing the script the malware follows. If a model can chain those steps on its own, the skill needed to run an attack drops to whatever it costs to rent an AI agent. The way in was an old, already-patched bug. JADEPUFFER exploited  CVE-2025-3248 , a missing-authentication flaw in  Langflow , an open-source tool for building AI apps and agent workflows. The flaw lets anyone who can reach the server run their own Python code on it, no login needed. Langflow boxes are a tempting target because they often sit ...

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Wednesday added a high-severity flaw impacting Microsoft SharePoint Server to its Known Exploited Vulnerabilities (KEV) catalog, citing evidence of active exploitation. The vulnerability, tracked as CVE-2026-45659 (CVSS score: 8.8), is a case of remote code execution arising from the deserialization of untrusted data. The issue was addressed by Microsoft in May 2026 for SharePoint Server Subscription Edition, SharePoint Server 2019, and SharePoint Enterprise Server 2016. Microsoft noted that any authenticated attacker could trigger the vulnerability, and that it does not require admin or other elevated privileges. In a network-based attack, an authenticated attacker with a minimum of Site Member permissions (PR:L) could leverage it to execute code remotely on the SharePoint Server. "Microsoft SharePoint Server contains a deserialization of untrusted data vulnerability which allows an authorized attacker t...

Adobe has released patches for multiple maximum-severity security flaws impacting Adobe ColdFusion and Adobe Campaign Classic. The ColdFusion updates "resolves critical and important vulnerabilities that could lead to arbitrary code execution, privilege escalation, arbitrary file system read, and security feature bypass," Adobe said in an alert released Tuesday. The vulnerabilities are listed below - CVE-2026-48276, CVE-2026-48283 (CVSS scores: 10.0) - Unrestricted upload of file with dangerous type vulnerabilities that could lead to arbitrary code execution CVE-2026-48277, CVE-2026-48281, CVE-2026-48316 (CVSS scores: 10.0) - Improper input validation vulnerabilities that could lead to arbitrary code execution CVE-2026-48282 (CVSS score: 10.0) - A path traversal vulnerability that could lead to arbitrary code execution CVE-2026-48313 (CVSS score: 9.3) - A path traversal vulnerability that could lead to arbitrary file system read CVE-2026-48315 (CVS...

A recently disclosed critical security flaw impacting Progress Kemp LoadMaster is seeing active exploitation attempts, according to an advisory from eSentire's Threat Response Unit (TRU). The Canadian cybersecurity company said it identified exploitation attempts targeting CVE-2026-8037 (CVSS score: 9.6), an operating system (OS) command injection flaw that could be exploited to achieve arbitrary code execution on susceptible devices. The exploitation activity commenced on June 29, 2026. "OS Command Injection Remote Code Execution Vulnerability in API in Progress LoadMaster allows an unauthenticated attacker with permissions to execute arbitrary commands on the LoadMaster appliance by exploiting unsanitized input," Progress said in an advisory for the vulnerability released early last month. In an analysis published this week, watchTowr Labs described the flaw as rooted in a function named "escape_quotes()" within the load balancer application and tha...