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

ClickFix-style attacks are being used to deliver a Go-based malware capable of stealing cryptocurrency assets, as well as browser-stored passwords, Apple iCloud Keychain data, and cached credentials. The macOS-focused infection chain is designed to deliver a shell script that profiles the host and then fetches a macOS malware payload that's compatible with the computer's CPU architecture. "While the malware payload is capable of stealing passwords, its most interesting function is its capability to slowly deplete cryptocurrency accounts, siphoning their contents into accounts under the threat actor's control," Huntress security researcher Andrew Brandt said . The attack chain begins with pasting a ClickFix command into the Terminal app, triggering the execution of a Bash profiler/loader that collects extensive system details and then retrieves a Mach-O payload that matches the victim's processor architecture. The payload is a Go-based stealer that can ...

A recent wave of cyber attacks targeting financial services, private equity, and professional services is attributed to a data extortion group known as UNC6671 . "UNC6671 continues to rely on voice phishing (vishing) to target enterprise employees, posing as IT help desk staff facilitating mandatory, urgent security migrations. Significantly, the threat actor often contacts employees via their personal mobile devices," Google Threat Intelligence Group (GTIG) and Mandiant said in a report. These calls are designed to trick victims into spoofed login portals where adversary-in-the-middle (AitM) infrastructure intercepts credentials and multi-factor authentication (MFA) tokens. The threat actors then leverage the captured data to establish session persistence and deploy automated Python and PowerShell scripts for data exfiltration from enterprise cloud environments and SaaS applications, including Microsoft 365 and Okta. According to the tech giant, UNC6671 has diversi...

WordPress has fixed a pre-authentication reflected cross-site scripting (XSS) flaw in its login screen that affects every version of the content management system. pwn.ai demonstrated how the flaw can be chained into PHP code execution on the server when a logged-in administrator interacts with an attacker-controlled page. Tracked as  CVE-2026-64638  (CVSS score: 8.9), the high-severity vulnerability requires no attacker privileges. According to pwn.ai , which discovered the flaw and shared technical details with The Hacker News, the login-page XSS requires no authentication. Once a crafted username reaches the failed-login error page, the resulting JavaScript executes in the visitor's browser with no further interaction required on that page. The code-execution path requires a victim already logged in as an Administrator and explicit interaction with an attacker-controlled page. In pwn.ai's demonstration, that interaction is one ordinary click. The researchers told Th...

Open Source had a great childhood. For two decades it got to be a kid. It ran around barefoot, gave everything away, trusted strangers, and never once thought about who was watching. It ran the kind of lemonade stand that took IOUs from anyone who wandered up — take what you need, pay me back whenever, no need to leave a name. It was idyllic. It was also, in retrospect, a little feral. Then, somewhere around 2020, its voice started to crack. It tried to grow a beard. Acne everywhere. SolarWinds, then Log4Shell, then TeamPCP and Shai-Hulud — the supply chain woke up one morning like the end of Ender's Game : the simulation had been real the whole time. Those were real battles. Real systems, real money, real people, all of it quietly leaning on code we'd been treating like a practice round. And then the adults showed up with rules: executive orders, European regulations, permission slips for half the places it wanted to go. What it did not get was a nice, slow, storybook ...

A use-after-free bug in Linux's SCTP networking code can be turned into full root on a host, and Tencent researchers say they used it to escape a container and reach the machine underneath. The flaw has existed since 2008. The fix already shipped: stable kernels 7.1.6, 6.18.42, 6.12.101 and 6.6.148, released August 3, close it. Anyone running an older kernel with SCTP reachable should update. Tracked as  CVE-2026-64564  and named SCTPhantom by its finders, the flaw was disclosed publicly on August 6, two days after the kernel CVE team assigned it. No public exploit code had surfaced at the time of writing, and The Hacker News found no entry for the flaw in CISA's Known Exploited Vulnerabilities catalog as of August 7. The flaw is local, not remote, and it needs SCTP reachable on the target, which limits exposure. Where those conditions held, Tencent Zhuque Lab reports it got root on the kernel builds it tested for Debian 13, Ubuntu 24.04, Rocky Linux 9 and RHEL 9, and ...

Security researcher Malcolm Stagg has disclosed a new attack class called  NatJack  that manipulates network address translation (NAT) connection state to hijack active TCP sessions, spoof DNS responses, expose mapped ports, and exhaust NAT tables. Presented at Black Hat USA 2026 , the research found affected behavior across independently developed implementations, including Windows and Linux. Two implementation-specific flaws have been assigned CVEs:  CVE-2026-56181  (CVSS score: 8.3) in Windows NAT used by Hyper-V, and  CVE-2026-63913  (CVSS score: 8.2) in Linux Netfilter conntrack. NatJack generally requires the attacker to have privileged access to a system behind the same NAT as the victim. The mitigation guidance therefore emphasizes separating untrusted workloads from trusted systems that share NAT infrastructure. There is no single patch for the broader attack class. Organizations should apply available Windows and Linux updates and encryp...

Cybersecurity researchers have called attention to an active "widespread email-driven phishing campaign" that employs adversary-in-the-middle (AitM) techniques to take control of Microsoft 365 accounts with an aim to identify key personnel involved in financial workflows and gather related email. "The campaign uses residential proxies to disguise malicious sign-ins as ordinary consumer traffic," Arctic Wolf Labs said . "Automated activity maintains compromised sessions at approximately eight-hour intervals." The activity is assessed to impact organizations across healthcare, education, manufacturing, government, and professional services sectors located in the U.S., Canada, and Europe. It shares tactical overlaps with Payroll Pirate attacks tracked by Microsoft under the moniker Storm-2755 . Payroll Pirates is the designation assigned to a broader financially motivated threat cluster that involves hijacking the accounts of employees to reroute sal...

PortSwigger says HTTP Terminator, an artificial intelligence (AI)-assisted research system built by James Kettle , generated and proved new HTTP desynchronization techniques after exploring 30,000 candidate desync vectors. PortSwigger said a separate human-guided discovery cascade also exposed a zero-day in Apache Traffic Server. Kettle said HTTP Terminator tested 30,000 websites where scanning was authorized through bug bounty or vulnerability disclosure programs and found roughly 700 vulnerable targets before deeper validation and RQP research. Kettle said those findings involved banks, government infrastructure, security products, and an airport. The research produced new desync triggers, a dual-matching Content-Length pattern, and a "dangling-byte" technique designed to make response queue poisoning (RQP) more reliable. RQP can potentially make a front end lose track of which back-end response belongs to which user, potentially exposing another user's resp...

Entra ID researcher Dirk-jan Mollema demonstrated that malware already running in a signed-in Windows session can silently use the victim's Windows Hello for Business key to authenticate to Microsoft Entra ID. The attacker can then establish longer-term cloud access, register a device it controls, obtain a Primary Refresh Token (PRT), and add further authentication methods where tenant policies permit. On TPM-backed systems, the attacker does not extract the private key, recover the PIN, or trigger a biometric prompt. Windows ticketing keeps private-key operations available while the user is interactively signed in, allowing code running as the user to ask Windows to sign authentication data. Administrator privileges are not required. The technique requires code execution in the victim's signed-in session. Mollema describes the behavior as a consequence of how Windows Hello for Business works and says it was left as-is. The disclosure does not report active exploitatio...

A GitHub issue opened by an account with no repository privileges was enough to execute code on the CI runners behind Anthropic's and Google's own coding-agent repositories. On OpenAI's, it was enough to hijack the next agent run. Novee Security ran the attack against each vendor's agent in the configuration that the vendor ships by default, and presented the work at Black Hat USA on August 5. Two CVEs came out of it. Both are patched. Gemini CLI carries the worst of the two. CVE-2026-12537 (CVSS 4 score: 10.0) is an OS command injection in the container launcher, reached through a crafted .gemini/.env file, which lets an unprivileged attacker run code on the host of a headless CI platform before the sandbox starts. It is fixed in Gemini CLI 0.39.1 and run-gemini-cli 0.1.22. In Claude Code, CVE-2026-54316 turned Hugging Face's public download counter into an exfiltration channel that leaked an API key one character at a time, and is fixed in 2.1.163. Every ...

A new analysis has uncovered that the threat actor tracked as TeamPCP has been active on the cybercrime scene as far back as 2020, indicating the group has been compromising internet-facing infrastructure for years before training their sights on the software supply chain. "The connection is supported by overlapping domains, malware deployment paths, staging techniques, backend infrastructure, and operational tradecraft," Oligo Security researchers Avi Lumelsky and Gal Elbaz said . This includes two campaigns observed in the second half of 2025: ShadowRay 2.0 (aka IronErn), which involved hijacking artificial intelligence (AI) infrastructure into a self-propagating botnet, and TA-NATALSTATUS , which targeted exposed Redis servers to deliver cryptocurrency miners. TA-NATALSTATUS is assessed to be an evolution of a prior campaign that was detailed by Trend Micro in April 2020 that involved targeting Redis servers to deploy malware. This suggests that the threat actor h...

Zapscape , a new Linux kernel vulnerability, could allow an attacker with kernel privileges inside an L1 guest virtual machine (VM) to escape KVM isolation and execute code on the host. The risk applies when nested virtualization is exposed to untrusted guests. The flaw is tracked as  CVE-2026-64561  and affects KVM/x86's shadow memory management unit (MMU), which manages shadow page tables used for nested guest memory translation. Security researcher Hyunwoo Kim, who disclosed the bug, said the demonstrated exploit path can run commands on the host with kernel, or root, privileges. The upstream fix has been merged, and administrators running KVM hosts that expose nested virtualization to untrusted guests should update to a fixed stable kernel or a vendor package that backports the patch. The required L1 kernel privilege usually means guest root. Intel systems also require both EPT page-walk length 4 and 5 to be exposed to the L1 guest. AMD has no equivalent conditio...

Cisco has rolled out updates to address multiple critical security vulnerabilities impacting Catalyst SD-WAN and IOS XE Software as part of a comprehensive internal security review. The security issues affect Cisco Catalyst SD-WAN Software, regardless of device configuration, and Cisco IOS XE Software when it is running in autonomous or controller mode. "These vulnerabilities were found during internal security testing using existing testing processes as well as frontier AI models [...] and are not known to be actively exploited," Cisco said, urging customers to apply the necessary updates for optimal protection. The vulnerabilities impacting Catalyst SD-WAN Software are listed below - CVE-2026-20303 (CVSS score: 9.9) - An improper input validation vulnerability (which also covers path traversals) CVE-2026-20304 (CVSS score: 9.9) - An improper access control vulnerability  CVE-2026-20310 (CVSS score: 9.9) - An improper link resolution before file acc...

An unprivileged Linux program can time a hardware interrupt to land in the gap between a processor sanitizing its branch predictor and the kernel using it, re-poisoning the predictor after the defense has run. MIT CSAIL researchers Daniël Trujillo and Mengjia Yan named the technique INTERRUPT INJECTION . On an AMD Zen 2 machine running Linux 6.14 with every default Spectre v2 mitigation on, their exploit leaked arbitrary kernel memory at 5.47 bytes per second with 91.97% accuracy, enough to locate and read /etc/shadow, which stores the system's password hashes, in five of ten attempts. It needs no privileges, only local code execution, so the risk sits on shared systems running an affected processor. The pair disclosed to AMD and Intel on February 5. AMD told them it plans a kernel patch; MIT says one has since shipped and arrives in a normal operating system update. A fix is in the Linux kernel. The commit, "x86/bugs: Make Safe-RET robust against interrupt injec...