The Hacker News | #1 Trusted Source for Cybersecurity News — Index Page

A new analysis of the Lua-based fast16 malware has confirmed that it was a cyber sabotage tool designed to tamper with nuclear weapons testing simulations. According to Broadcom-owned Symantec and Carbon Black teams, the pre-Stuxnet tool was engineered to corrupt uranium-compression simulations that are central to nuclear weapon design. "Fast16's hook engine is selectively interested in high-explosive simulations inside LS-DYNA and AUTODYN," the Threat Hunter Team said . "The malware checks for the density of the material being simulated and only acts when that value passes 30 g/cm³, the threshold uranium can only be reached under the shock compression of an implosion device. The development comes weeks after SentinelOne presented an analysis of fast16, describing it as the first sabotage framework whose components may have developed as early as 2005, predating the earliest known version of Stuxnet (aka Stuxnet 0.5) by two years. Evidence unearthed by the cybe...

A newly disclosed security flaw impacting NGINX Plus and NGINX Open Source has come under active exploitation in the wild, days after its public disclosure, according to VulnCheck . The vulnerability, tracked as CVE-2026-42945 (CVSS score: 9.2), is a heap buffer overflow in ngx_http_rewrite_module affecting NGINX versions 0.6.27 through 1.30.0. According to AI-native security company depthfirst, the vulnerability was introduced in 2008. Successful exploitation of the flaw can permit an unauthenticated attacker to crash worker processes or execute remote code with crafted HTTP requests. However, it bears noting that code execution is possible only on devices where Address Space Layout Randomization (ASLR), a safeguard against memory-based attacks, is turned off.

Grafana has disclosed that an "unauthorized party" obtained a token that granted them the ability to access the company's GitHub environment and download its codebase. "Our investigation has determined that no customer data or personal information was accessed during this incident, and we have found no evidence of impact to customer systems or operations," Grafana said in a series of posts on X. The company also said it immediately launched a forensic analysis upon discovering the activity and that it identified the source of the leak, adding the compromised credentials have since been invalidated, and extra security measures have been implemented to secure against unauthorized access. Furthermore, Grafana revealed the attacker tried to blackmail and extort the company, demanding they make a payment to prevent the stolen database from being published. Grafana said it has opted not to pay the ransom, citing guidance issued by the U.S. Feder...

A critical security vulnerability impacting the Funnel Builder plugin for WordPress has come under active exploitation in the wild to inject malicious JavaScript code into WooCommerce checkout pages with the goal of stealing payment data. Details of the activity were published by Sansec this week. The vulnerability currently does not have an official CVE identifier. It affects all versions of the plugin before 3.15.0.3. It's used in more than 40,000 WooCommerce stores.  The flaw lets unauthenticated attackers inject arbitrary JavaScript into every checkout page on the store, the Dutch e-commerce security company said. FunnelKit, which maintains Funnel Builder, has released a patch for the vulnerability in version 3.15.0.3. "Attackers are planting fake Google Tag Manager scripts into the plugin's 'External Scripts' setting," it noted. "The injected code looks like ordinary analytics next to the store's real tags, but...

The Russian state-sponsored hacking group known as Turla has transformed its custom backdoor Kazuar into a modular peer-to-peer (P2P) botnet that's engineered for stealth and persistent access to compromised hosts. Turla, per the U.S. Cybersecurity and Infrastructure Security Agency (CISA), is assessed to be affiliated with Center 16 of Russia's Federal Security Service (FSB). It overlaps with activity traced by the broader cybersecurity community under the names ATG26, Blue Python, Iron Hunter, Pensive Ursa, Secret Blizzard (formerly Krypton), Snake, SUMMIT, Uroburos, Venomous Bear, Waterbug, and WRAITH. The hacking group is known for its attacks targeting government, diplomatic, and defense sectors in Europe and Central Asia, as well as endpoints previously breached by Aqua Blizzard (aka Actinium and Gamaredon) to support the Kremlin's strategic objectives. "This upgrade aligns with Secret Blizzard's broader objective of gaini...

Cybersecurity researchers have disclosed a set of four security flaws in OpenClaw that could be chained to achieve data theft, privilege escalation, and persistence. The vulnerabilities, collectively dubbed Claw Chain by Cyera, can permit an attacker to establish a foothold, expose sensitive data, and plant backdoors. A brief description of the flaws is below - CVE-2026-44112 (CVSS score: 9.6/6.3) - A time-of-check/time-of-use (TOCTOU) race condition vulnerability in the OpenShell managed sandbox backend that allows attackers to bypass sandbox restrictions and redirect writes outside the intended mount root.  CVE-2026-44113 (CVSS score: 7.7/6.3) - A TOCTOU race condition vulnerability in OpenShell that allows attackers to bypass sandbox restrictions and read files outside the intended mount root. CVE-2026-44115 (CVSS score: 8.8) - An incomplete list of disallowed inputs vuln...