CyberSecurity Updates

A SharePoint vulnerability patched last month is now being exploited in the wild, with the attacks starting shortly after the release of a proof-of-concept (PoC) exploit. The vulnerability, tracked as CVE-2026-55040, was fixed by Microsoft with its July Patch Tuesday updates. Microsoft described it as a weak authentication issue that allows an attacker to bypass a security feature over a network. “Exploiting this vulnerability could allow an attacker to disclose files and modify data,” Microsoft…

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Adobe on Tuesday rolled out patches for over 50 vulnerabilities across its products, including critical-severity bugs in ColdFusion, Campaign Classic, and Commerce. With a priority 1 rating, the ColdFusion update fixes 15 security defects, including three flagged as critical that could lead to arbitrary code execution and application denial-of-service (DoS). These include an OS command injection tracked as CVE-2026-48362 (CVSS score of 10/10), an eval injection tracked as CVE-2026-48273 (CVSS score of 9.9/10), and an…

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OpenAI has flagged its upcoming AI model, Astra, for potentially reaching a ‘critical’ cybersecurity risk threshold, prompting the company to suspend internal development activities that lack newly mandated security controls. Recent internal evaluations of Astra revealed massive leaps in its agentic coding and cybersecurity abilities.  Under OpenAI’s Preparedness Framework, a model hits the ‘critical’ tier if it can autonomously build zero-day exploits against hardened, real-world systems. It also qualifies if the AI can independently design…

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DEF CON — Varonis Threat Labs has disclosed a one-click vulnerability in Rovo, Atlassian’s enterprise AI assistant, that let a specially crafted link seed attacker-controlled instructions directly into a user’s live AI session.  Dubbed RovoBlast, the flaw required no jailbreak and no permission bypass, relying on the fact that the assistant simply treated externally supplied parameters as trusted input. Rovo functions as an AI layer spanning Jira, Confluence, Bitbucket, and third-party tools such as Slack,…

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SecurityWeek’s weekly cybersecurity news roundup offers a concise overview of important developments that may not receive full standalone coverage yet remain relevant to the broader threat landscape. This curated summary highlights key stories across vulnerability disclosures, emerging attack methods, policy updates, industry reports, and other noteworthy events to help readers maintain a well-rounded awareness of the evolving cybersecurity environment. Here are this week’s highlights:  OpenAI disrupts Cambodia scam network abusing ChatGPT OpenAI banned a coordinated…

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UNC6671, an extortion group engaging in tailored IT helpdesk voice phishing (vishing), has rebranded and diversified its operations over the past several months, Google Threat Intelligence Group (GTIG) reports. The threat actor emerged in early 2026, operating under the ‘BlackFile’ name. In May, GTIG warned it had targeted dozens of organizations across North America, Australia, and the UK in sophisticated vishing and single sign-on (SSO) compromise attacks. Mainly focusing on Microsoft 365 and Okta infrastructure,…

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AI security company Zenity has disclosed the details of two AI browser hacking techniques targeting Claude in Chrome and ChatGPT Atlas, demonstrating how they can be used for account takeovers, phishing, and making unauthorized Amazon purchases. Zenity described its research in two separate blog posts published on Wednesday, one covering the ChatGPT Atlas research and one covering the Claude in Chrome attack. ChatGPT Atlas hacking Zenity researchers discovered that OpenAI’s agentic browser, ChatGPT Atlas, is…

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