Ruby on Rails has released fixes for a critical Active Storage vulnerability that could let unauthenticated attackers read arbitrary files from application servers through crafted image uploads. Tracked as CVE-2026-66066 (CVSS score: 9.5), the flaw can expose the Rails process environment and secrets such as secret_key_base, the Rails master key, database passwords, cloud storage credentials,

Health-ISAC is warning healthcare and medical technology organizations of an observed increase in successful attacks by ShinyHunters, which are using social engineering to compromise single sign-on accounts and steal data from cloud services. [...]

Dark Reading walks through the many twists and turns in the bizarre story of how OpenAI's agent AI system broke out of its sandbox and decided to target Hugging Face, and what CISOs should be aware of.

Dark Reading Confidential Episode 20: Expert Rich Mogull reflects on lessons cyber teams should pull from the OpenAI agent's attack on Hugging Face.

New research shows how security scanners embedded in the software supply chain can be attacked to serve as a foothold for downstream attacks.

In a new update, OpenAI says its AI models also used publicly exposed credentials to compromise accounts on four third-party services during the recent attack on Hugging Face, expanding the scope of the four-day security incident to other organizations. [...]

Cybersecurity researchers have flagged a maximum-severity security flaw in Ruflo, an open-source agent meta-harness for Anthropic Claude Code and OpenAI Codex, that could result in unauthenticated remote code execution. The vulnerability, tracked as CVE-2026-59726 (CVSS score: 10.0), impacts all versions of the project before version 3.16.3. It has been codenamed RufRoot by Noma Security's

Broadcom has released security updates to address multiple security flaws impacting VMware ESX, vCenter, Workstation, and Fusion, three of which have been designated as critical in severity. The first of the three critical-rated flaws is CVE-2026-59309 (CVSS score: 9.8), which has been described as an authentication bypass in VMware vCenter. "A malicious actor with network access to vCenter

The Minnesota IT Services (MNIT) agency activated its cybersecurity incident response capabilities across the entire state after hackers targeted more than 30 community water systems in "a coordinated cyberattack." [...]

The vulnerability in the AI hosting platform Ruflo allows an unauthenticated attacker to take over the system and corrupt memory, so bad behavior can persist after patching.

AI agents are designed to improvise as they complete tasks, making broad permissions a growing security risk. Token Security explains why identity, intent-based access controls, and least privilege are becoming the foundation for securing agentic AI. [...]

​​Microsoft has released the KB5101684 preview cumulative update for Windows 11 24H2 and 25H2, which 42 bug fixes and additional feature improvements for the operating system. [...]

A coordinated cyberattack targeted operational technology at more than 30 Minnesota community water systems on July 26 and 27, triggering a statewide cybersecurity response. Braham, Plymouth, South St. Paul and Maple Plain have publicly described a plant outage, communications failures or affected automated controls. Braham's water plant went offline, and the city asked residents to minimize

Cybersecurity researchers have disclosed details of a large-scale fraud campaign that involves creating lookalike websites of major Russian companies with an aim to siphon funds from international firms for more than nine years. According to Russian cybersecurity vendor F6, the threat actors have set up clone websites of Russian companies across fertilizer manufacturers, petrochemical companies

The agency said imports of advanced robots pose cybersecurity and other national security risks. The post US Bans Foreign-Made Humanoid Robots, Targeting China Over National Security appeared first on SecurityWeek.

The startup will use the investment to expand its customer support, sales, and R&D teams. The post Mate Security Raises $35 Million for Agentic SOC appeared first on SecurityWeek.

The company was previously valued at $1.6 billion, and the latest raise has significantly increased that valuation. The post ThreatLocker Raises $190 Million in Series F Funding appeared first on SecurityWeek.

AI is compressing exploit timelines. The real question isn't whether your vulnerability management playbook needs to change, it's which part of it you've been getting wrong all along. The conversation happening in security circles right now goes something like this: Mythos is here. Exploit timelines are collapsing. Does the vulnerability management playbook need to change? The honest answer is

CISA, the National Security Agency, the Federal Bureau of Investigation, and international partners released joint guidance, 2026 Minimum Elements for a Software Bill of Materials (SBOM), that updates and replaces the minimum elements for an SBOM published by the National Telecommunications and Information Administration (NTIA) in 2021. The new guidance incorporates stakeholder feedback from a 2025 public comment period and reflects current SBOM tools and needs while preserving the core principl

CISA has added one new vulnerability to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation.   CVE-2026-20316 Cisco Secure Firewall Management Center Use of Hard-coded Password Vulnerability This type of vulnerability is a frequent attack vector for malicious cyber actors and poses significant risks to the federal enterprise. Binding Operational Directive (BOD) 26-04: Prioritizing Security Updates Based on Risk establishes vulnerability management requir

Nebula Security says a patched Firefox JIT flaw could be triggered by simply visiting a malicious webpage and was also used to compromise Tor Browser. Tracked as CVE-2026-10702, the bug provides arbitrary code execution inside the browser's renderer process. Mozilla rated it High and fixed it in the Firefox 151.0.3 update. "No settings or additional user interaction are required," Eten Zou,

A total of five vulnerabilities have been patched in VMware ESXi, vCenter, Workstation, and Fusion. The post Critical VM Escape Vulnerability Patched in VMware ESXi appeared first on SecurityWeek.

Most organizations have incident response plans, security tools, and technical teams in place. Yet new research suggests that many still lack the coordination, visibility, and executive alignment needed to withstand a serious cyberattack. According to The State of Incident Response Readiness 2026, based on a survey of 600 senior IT security decision makers conducted by Vanson Bourne in January

Buying a new computer in 2026 is a unique experience. Rather than deal with incredibly high tech prices, more shoppers are opting for high-quality refurbished tech. This ASUS Chromebook CM30 refurb is in near-mint condition with a grade "A" rating, but it still only costs $144.97 (reg. $369.99) on sale. [...]

The Federal Security Service of the Russian Federation (FSB) on Wednesday said it charged Telegram founder Pavel Durov for allegedly facilitating terrorist activities and for failing to remove prohibited information in violation of Russian law. The principal security agency said the instant messaging platform "failed to remove numerous channels, chats, and bots on the platform that are

The guidance details steps organizations can take to isolate vital OT and supporting systems, and operate in isolation for an extended period. The post US, Australia Release OT Isolation Guidance for Critical Infrastructure  appeared first on SecurityWeek.

Hugging Face has published an anatomy of the attack and OpenAI has shared additional information from its investigation. The post OpenAI’s Rogue AI Ventured Beyond Hugging Face appeared first on SecurityWeek.

The IP intelligence company will use the fresh investment to accelerate and scale its operations. The post Spur Raises $200 Million for IP Intelligence Platform appeared first on SecurityWeek.

Cybersecurity researchers have shared additional technical details about a recently patched critical security flaw impacting Check Point Security Management Server and Multi-Domain Security Management Server (MDS) that has come under active exploitation in the wild. The vulnerability, tracked as CVE-2026-16232 (CVSS score: 9.3), is an authentication bypass in the SmartConsole login process that

The OpenAI models targeted services beyond Hugging Face as they attempted to solve the tasks they were given. The post JFrog Zero-Days Exploited in OpenAI-Hugging Face Hack appeared first on SecurityWeek.