Vulnerability | Breaking Cybersecurity News | The Hacker News

Details have emerged about a new, unpatched local privilege escalation (LPE) vulnerability impacting the Linux kernel. Dubbed Dirty Frag , it has been described as a successor to Copy Fail (CVE-2026-31431, CVSS score: 7.8), a recently disclosed LPE flaw impacting the Linux kernel that has since come under active exploitation in the wild. The vulnerability was reported to Linux kernel maintainers on April 30, 2026. "Dirty Frag is a vulnerability (class) that achieves root privileges on most Linux distributions by chaining the xfrm-ESP Page-Cache Write vulnerability and the RxRPC Page-Cache Write vulnerability," security researcher Hyunwoo Kim (@v4bel) said in a write-up. "Dirty Frag is a case that extends the bug class to which Dirty Pipe and Copy Fail belong. Because it is a deterministic logic bug that does not depend on a timing window, no race condition is required, the kernel does not panic when the exploit fails, and the success rate is very high." T...

Ivanti is warning that a new security flaw impacting Endpoint Manager Mobile (EPMM) has been explored in limited attacks in the wild. The high-severity vulnerability, CVE-2026-6973 (CVSS score: 7.2), is a case of improper input validation affecting EPMM before versions 12.6.1.1, 12.7.0.1, and 12.8.0.1. It allows "a remotely authenticated user with administrative access to achieve remote code execution," Ivanti said in an advisory released today. "We are aware of a very limited number of customers exploited with CVE-2026-6973. Successful exploitation requires Admin authentication. If customers followed Ivanti's recommendation in January to rotate credentials if you were exploited with CVE-2026-1281 and CVE-2026-1340 , then your risk of exploitation from CVE-2026-6973 is significantly reduced." It's currently not known who is behind the exploitation efforts, if any of those attacks were successful, and what the end goals of the attacks were. The devel...

Palo Alto Networks has disclosed that threat actors may have attempted to unsuccessfully exploit a recently disclosed critical security flaw as early as April 9, 2026. The vulnerability in question is CVE-2026-0300 (CVSS score: 9.3/8.7), a buffer overflow vulnerability in the User-ID Authentication Portal service of Palo Alto Networks PAN-OS software that could allow an unauthenticated attacker to execute arbitrary code with root privileges by sending specially crafted packets. While fixes are expected to be released starting May 13, 2026, customers are advised to secure access to the PAN-OS User-ID Authentication Portal by restricting access to trusted zones, or by disabling it entirely if it's not used. As additional mitigation, the company is recommending that organizations disable Response Pages in the Interface Management Profile for any L3 interface where untrusted or internet traffic can ingress. Customers with Advanced Threat Prevention can also block exploitation a...

Bad week. Turns out the easiest way to get hacked in 2026 is still the same old garbage: shady packages, fake apps, forgotten DNS junk, scam ads, and stolen logins getting dumped into Discord channels like it’s normal. Some of these attack chains don’t even feel sophisticated anymore. More like some tired guy with a Telegram account and too much free time. The worst part is how often this stuff still works. Meanwhile, AI tools are speeding up exploit hunting, browsers are keeping passwords sitting in memory for “performance reasons,” and even ransomware crews are pushing broken builds into the wild. Everybody’s scrambling to patch faster because attackers are automating faster. Anyway. ThreatsDay’s rough this week. Let’s get into it. Credential theft campaign New MicroStealer Spotted A new stealer called MicroStealer has been observed targeting education and telecom sectors to steal sensitive data. It was first observed in the wild in...

A dozen critical security vulnerabilities have been disclosed in the vm2 Node.js library that could be exploited by bad actors to break out of the sandbox and execute arbitrary code on susceptible systems. vm2 is an open-source library used to run untrusted JavaScript code inside a secure sandbox by intercepting and proxying JavaScript objects to prevent sandboxed code from accessing the host environment. The security flaws are listed below - CVE-2026-24118 (CVSS score: 9.8) - A vulnerability that allows sandbox escape via "__lookupGetter__" and permits an attacker to run arbitrary code on the underlying host. (Affects versions <= 3.10.4, patches in 3.11.0) CVE-2026-24120 (CVSS score: 9.8) - A patch bypass for CVE-2023-37466 (CVSS score: 9.8) that could allow attackers to escape the sandbox through the species property of promise objects and execute arbitrary commands on the underlying host. (Affects versions <= 3.10.3, patched in 3.10.5) CVE-2026-24781 (CVSS ...

Cybersecurity researchers have exposed a new Mirai -derived botnet that self-identifies as xlabs_v1 and targets internet-exposed devices running Android Debug Bridge ( ADB ) to enlist them in a network capable of carrying out distributed denial-of-service (DDoS) attacks. Hunt.io, which detailed the malware, said it made the discovery after identifying an exposed directory on a Netherlands-hosted server at the IP address "176.65.139[.]44" without requiring any authentication. The malware supports "21 flood variants across TCP, UDP, and raw protocols, including RakNet and OpenVPN-shaped UDP, capable of bypassing consumer-grade DDoS protection," Hunt.io said, adding it's offered as a DDoS-for-hire service designed for targeting game servers and Minecraft hosts. What makes xlabs_v1 notable is that it seeks out Android devices running an exposed ADB service on TCP port 5555, meaning any gear that comes with the tool enabled by default, such as Android TV boxes,...

Palo Alto Networks has released an advisory warning that a critical buffer overflow vulnerability in its PAN-OS software has been exploited in the wild. The vulnerability, tracked as CVE-2026-0300 , has been described as a case of unauthenticated remote code execution. It carries a CVSS score of 9.3 if the User-ID Authentication Portal is configured to enable access from the internet or any untrusted network. The severity comes down to 8.7 if access to the portal is restricted to only trusted internal IP addresses. "A buffer overflow vulnerability in the User-ID Authentication Portal (aka Captive Portal) service of Palo Alto Networks PAN-OS software allows an unauthenticated attacker to execute arbitrary code with root privileges on the PA-Series and VM-Series firewalls by sending specially crafted packets," the company said . According to Palo Alto Networks, the vulnerability has come under "limited exploitation," specifically targeting instances where the Use...

The Apache Software Foundation (ASF) has released security updates to address several security vulnerabilities in the HTTP Server, including a severe vulnerability that could potentially lead to remote code execution (RCE). The vulnerability, tracked as CVE-2026-23918 (CVSS score: 8.8), has been described as a case of "double free and possible RCE" in the HTTP/2 protocol handling. This issue affects Apache HTTP Server 2.4.66 and has been addressed in version 2.4.67. Striga.ai co-founder Bartlomiej Dmitruk and ISEC.pl researcher Stanislaw Strzalkowski have been credited with discovering and reporting the vulnerability. When reached for comment, Dmitruk told The Hacker News via email that the severity of CVE-2026-23918 is critical, as it can be exploited to achieve denial-of-service (DoS) and RCE. Additional details of the vulnerability are below - CVE-2026-23918 is a double-free in Apache httpd 2.4.66 mod_http2 , specifically in the stream cleanup path of h2_mplx.c. T...

Threat actors are actively exploiting a critical security flaw impacting an open-source content management system (CMS) known as MetInfo, according to new findings from VulnCheck. The vulnerability in question is CVE-2026-29014 (CVSS score: 9.8), a code injection flaw that could result in arbitrary code execution. "MetInfo CMS versions 7.9, 8.0, and 8.1 contain an unauthenticated PHP code injection vulnerability that allows remote attackers to execute arbitrary code by sending crafted requests with malicious PHP code," the NIST National Vulnerability Database (NVD) states . "Attackers can exploit insufficient input neutralization in the execution path to achieve remote code execution and gain full control over the affected server." Per security researcher Egidio Romano, who discovered the vulnerability, the problem is rooted in the "/app/system/weixin/include/class/weixinreply.class.php" script, and stems from a lack of adequate sanitization of user...

While the software industry has made genuine strides over the past few decades to deliver products securely, the furious pace of AI adoption is putting that progress at risk. Businesses are moving fast to self-host LLM infrastructure, drawn by the promise of AI as a force multiplier and the pressure to deliver more value faster. But speed is coming at the expense of security. In the wake of the ClawdBot fiasco — the viral self-hosted AI assistant that’s averaging an eye-watering 2.6 CVEs per day — the Intruder team wanted to investigate how bad the security of AI infrastructure actually is. To scope the attack surface, we used certificate transparency logs to pull just over 2 million hosts with 1 million exposed services. What we found wasn’t pretty. In fact, the AI infrastructure we scanned was more vulnerable, exposed, and misconfigured than any other software we've ever investigated. No authentication by default It didn’t take long to spot an alarming pattern: a signific...

A critical security vulnerability in Weaver (Fanwei) E-cology , an enterprise office automation (OA) and collaboration platform, has come under active exploitation in the wild. The vulnerability ( CVE-2026-22679 , CVSS score: 9.8) relates to a case of unauthenticated remote code execution affecting Weaver E-cology 10.0 versions prior to 20260312. The issue resides in the "/papi/esearch/data/devops/dubboApi/debug/method" endpoint that allows an attacker to execute arbitrary commands by invoking exposed debug functionality. "Attackers can craft POST requests with attacker-controlled interfaceName and methodName parameters to reach command-execution helpers and achieve arbitrary command execution on the system," according to a description of the flaw in the NIST National Vulnerability Database (NVD). The advisory also noted that the Shadowserver Foundation observed the first signs of active exploitation on March 31, 2026. A similar alert published by QiAnXin on M...

Progress Software has released updates to address two security flaws in MOVEit Automation, including a critical bug that could result in an authentication bypass. MOVEit Automation (formerly Central) is a secure, server-based managed file transfer (MFT) solution used to schedule and automate file movement workflows in enterprise environments without requiring any custom scripts.  The vulnerabilities in question are CVE-2026-4670 (CVSS score: 9.8), an authentication bypass vulnerability, and CVE-2026-5174 (CVSS score: 7.7), an improper input validation vulnerability that could allow privilege escalation. "Critical and high vulnerabilities in MOVEit Automation may allow authentication bypass and privilege escalation through the service backend command port interfaces," Progress Software said in an advisory. "Exploitation may lead to unauthorized access, administrative control, and data exposure." The shortcomings affect the following versions - MOVEit Autom...

This week, the shadows moved faster than the patches. While most teams were still triaging last month’s alerts, attackers had already turned control panels into kill switches, kernels into open doors, and open-source pipelines into silent delivery systems. The game has shifted from breach to occupation. They’re living inside SaaS sessions, pushing code with trusted commits, and scaling operations like legitimate businesses — except their product is chaos. And the underground is getting uncomfortably professional. Here’s the full weekly cybersecurity recap: ⚡ Threat of the Week cPanel Flaw Comes Under Attack —A critical flaw in cPanel and WebHost Manager (WHM) has come under active exploitation in the wild. The vulnerability, tracked as CVE-2026-41940, could result in an authentication bypass and allow remote attackers to gain elevated control of the control panel. In some cases , the attacks have led to a complete wipe of entire websites and backups. Other attacks have deployed ...

A previously unknown threat actor has been observed targeting government and military entities in Southeast Asia, alongside a smaller cluster of managed service providers (MSPs) and hosting providers in the Philippines, Laos, Canada, South Africa, and the U.S., by exploiting the recently disclosed vulnerability in cPanel. The activity, detected by Ctrl-Alt-Intel on May 2, 2026, involves the abuse of CVE-2026-41940 , a critical vulnerability in cPanel and WebHost Manager (WHM) that could result in an authentication bypass and allow remote attackers to gain elevated control of the control panel. The attack efforts have originated from the IP address "95.111.250[.]175," primarily singling out government and military domains associated with the Philippines (*.mil.ph and (*.ph)) and Laos (*.gov.la), as well as MSPs and hosting providers, using publicly-available   proof-of-concepts (PoCs). In addition, Ctrl-Alt-Intel revealed that the threat actor used a separate custom exp...

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Friday added a recently disclosed security flaw impacting various Linux distributions to its Known Exploited Vulnerabilities ( KEV ) catalog, citing evidence of active exploitation in the wild. The vulnerability, tracked as CVE-2026-31431 (CVSS score: 7.8), is a case of local privilege escalation (LPE) flaw that could allow an unprivileged local user to obtain root. The nine-year-old flaw is also tracked as Copy Fail by Theori and Xint. Fixes have been made available in Linux kernel versions 6.18.22, 6.19.12, and 7.0. "Linux Kernel contains an incorrect resource transfer between spheres vulnerability that could allow for privilege escalation," CISA said in an advisory. In a write-up published earlier this week, the researchers said Copy Fail is the result of a logic bug in the Linux kernel's authentication cryptographic template that allows an attacker to reliably trigger privilege escalation tri...

Cybersecurity researchers have disclosed details of a new China-aligned espionage campaign targeting government and defense sectors across South, East, and Southeast Asia, along with one European government belonging to NATO. Trend Micro has attributed the activity to a threat activity cluster it tracks under the temporary designation SHADOW-EARTH-053 . The adversarial collective is assessed to be active since at least December 2024, while sharing some level of network overlap with CL-STA-0049, Earth Alux, and REF7707 . "The group exploits N-day vulnerabilities in internet-facing Microsoft Exchange and Internet Information Services (IIS) servers (e.g., ProxyLogon chain), then deploys web shells ( Godzilla ) for persistent access and stages ShadowPad implants via DLL sideloading of legitimate signed executables," security researchers Daniel Lunghi and Lucas Silva said in an analysis. Targets of the campaigns include Pakistan, Thailand, Malaysia, India, Myanmar, Sri Lank...

The internet is noisy this week. We are seeing some wild new tactics, like people using fake cell towers to send scam texts, while some developers are accidentally downloading tools that peek into their private files during a simple install. It is definitely a busy time to be online. Security is always a moving target. Millions of servers are currently sitting online without any passwords, and old software bugs are showing up in the most unexpected places. Even with the right fixes available, staying one step ahead is a full-time job for all of us. Data is shifting in strange ways, too. Some browser tools are now legally selling user history for profit, and new kits are making it simpler for almost anyone to launch a campaign. You have to see these latest updates to believe them. Let’s look at the full list... SMS blaster phishing crackdown Canadian Authorities Arrest 3 Men for Alleged Use of SMS Blaster Canadian authorities have ar...

Cybersecurity researchers have disclosed details of a Linux local privilege escalation (LPE) flaw that could allow an unprivileged local user to obtain root. The high-severity vulnerability tracked as CVE-2026-31431 (CVSS score: 7.8) has been codenamed Copy Fail by Xint.io and Theori. "An unprivileged local user can write four controlled bytes into the page cache of any readable file on a Linux system, and use that to gain root," the vulnerability research team at Xint.io and Theori said . At its core, the vulnerability stems from a logic flaw in the Linux kernel's cryptographic subsystem, specifically within the algif_aead module. The issue was introduced in a source code commit made in August 2017. Successful exploitation of the shortcoming could allow a simple 732-byte Python script to edit a setuid binary and obtain root on essentially all Linux distributions shipped since 2017, including Amazon Linux, RHEL, SUSE, and Ubuntu. The Python exploit involves four ...

Google has addressed a maximum severity security flaw in Gemini CLI -- the "@google/gemini-cli" npm package and the "google-github-actions/run-gemini-cli" GitHub Actions workflow -- that could have allowed attackers to execute arbitrary commands on host systems. "The vulnerability allowed an unprivileged external attacker to force their own malicious content to load as Gemini configuration," Novee Security said in a Wednesday report. "This triggered command execution directly on the host system, bypassing security before the agent’s sandbox even initialized." The shortcoming, which does not have a CVE identifier, carries a CVSS score of 10.0. It affects the following versions - @google/gemini-cli < 0.39.1 @google/gemini-cli < 0.40.0-preview.3 google-github-actions/run-gemini-cli < 0.1.22 In its advisory published last week, Google said the impact is limited to workflows using Gemini CLI in headless mode, adding that any use of...

cPanel has released security updates to address a security issue impacting various authentication paths that could allow an attacker to obtain access to the control panel software. The problem affects all currently supported versions of cPanel and WebHost Manager (WHM), according to an alert published by WebPros on Tuesday. It does not have an official identifier. The issue has been addressed in the following versions - 11.86.0.41 and higher 11.110.0.97 and higher 11.118.0.63 and higher 11.124.0.35 and higher 11.126.0.54 and higher 11.130.0.19 and higher 11.132.0.29 and higher 11.134.0.20 and higher 11.136.0.5 and higher "If your server is not running a supported version of cPanel that is eligible for this update, it is highly recommended that you work toward updating your server as soon as possible, as it may also be affected," cPanel noted. While cPanel did not share any details about the vulnerability, web hosting and domain registration company Namecheap d...