Vulnerability | Breaking Cybersecurity News | The Hacker News

Malicious actors are exploiting a newly patched security flaw in PaperCut NG and MF to execute arbitrary code on susceptible instances, as the company released a fresh emergency fix with additional hardening. "This vulnerability gives an unauthenticated attacker remote control over PaperCut's trusted configuration, which could be used to execute arbitrary Java code inside the application's process," Huntress researchers John Hammond and Andrew Brandt said . Specifically, an attacker can leverage an unauthenticated request to make changes to the server configuration and ultimately achieve code execution. Huntress has explained the flaw as follows - In unpatched versions of PaperCut NG and PaperCut MF,  a specifically crafted request can refer to one page that is rendered for the response, and another page that owns the component or action being executed. PaperCut's authorization check could trust the rendered page and miss the permissions required by the...

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Thursday added a critical security flaw impacting ownCloud to its Known Exploited Vulnerabilities ( KEV ) catalog following reports that a Chinese-speaking threat actor weaponized the vulnerability to target a nuclear research body in the Philippines. The vulnerability, tracked as CVE-2023-49105 (CVSS score: 9.8), is a case of WebDAV API authentication bypass that could allow an attacker to access, modify or delete any file without authentication if the username of the victim is known and the victim has no signing-key configured, which is the default configuration. Disclosed by ownCloud in November 2023, the issue impacts "core" versions from 10.6.0 through 10.13.0. It was fixed in version 10.13.1. CISA's addition of the flaw to the KEV catalog comes a couple of days after Hunt.io said it identified an open directory on the host "31.58.209[.]241," which staged custom Python scripts, o...

Security researcher Olivier Laflamme has disclosed two independent root remote code execution (RCE) chains affecting the Unitree G1 EDU , including a Bluetooth Low Energy (BLE) path that can reach root on the robot's Locomotion PC. The flaws are tracked as  CVE-2026-76639  and  CVE-2026-76640 , with the first involving a network-adjacent path through chat_go and bashrunner and the second beginning from BLE proximity. An exact fixed firmware release has not been verified in any accessible Unitree guidance, leaving G1 EDU owners without a confirmed release target for either vulnerability. Laflamme said Unitree patched the cloud account-to-robot ownership check in July 2026. As of the August 27 disclosure, the current cloud-assisted route requires an account bound to the target G1 or the relevant key material already in hand. Laflamme published the research on August 27, 2026, describing the two issues as separate root-RCE paths. The research timeline shows Laflamm...

ServiceNow has released patches for four security flaws impacting the ServiceNow AI Platform, three of them rated 10.0 on the CVSS scoring system and exploitable, in certain circumstances, by an unauthenticated attacker. The company said it deployed a security update to hosted instances and provided the update to its partners and self-hosted customers, which leaves organizations that run their own instances to apply the fixes themselves. The advisory was published on August 27, 2026, and the four vulnerabilities are listed below - CVE-2026-18885 (CVSS score: 10.0) - A code injection vulnerability in the GraphQL Composite Data API that could enable an unauthenticated user to execute arbitrary code and gain access to, or modify, instance data CVE-2026-18886 (CVSS score: 10.0) - An improper access control vulnerability in the system configuration image upload processor that could enable an unauthenticated user to create or modify instance data, resulting in privilege escala...

VulnCheck has disclosed two previously undocumented factory implants in firmware for routers built by Shenzhen Zhibotong Electronics ( ZBT ), each of which gives an unauthenticated remote attacker the ability to run commands as root on affected devices. The implants, named SPEAKINGSTONE and DARKLANTERN by the company's zero-day research team, are tracked as CVE-2026-74232 and CVE-2026-74233 . VulnCheck, which assigned both identifiers as a CVE Numbering Authority (CNA), rated each 9.3 on the CVSS 4.0 scoring system and 9.8 on CVSS 3.1. Both vectors record a network attack requiring no privileges and no user interaction. SPEAKINGSTONE, which runs as the service yunmgrd , sends beacons over UDP port 10000 to a hardcoded command-and-control (C2) server. Because the implant dials outward, it functions from behind NAT and ordinary egress filtering. Its protocol supports message types that execute arbitrary commands as root, exfiltrate the WAN PPPoE username and password, wri...

cPanel has released patches for a security flaw affecting domain parking and addon domain functionality in cPanel and WebHost Manager (WHM), which could allow code execution as the root user. The vulnerability, assigned the CVE identifier CVE-2026-65643 , impacts all supported versions of cPanel & WHM. cPanel described the issue as a critical security vulnerability and said that an authenticated account holder who can add parked or addon domains can create arbitrary files on the server. "Successful exploitation leads to code execution as the root user, giving an attacker full control of the server," cPanel said in a notification to customers. cPanel has released the following patched versions - 11.110.0.141 or later 11.134.0.53 or later 11.136.0.37 or later 11.138.0.2 or later 11.138.1.7 or later (WP Squared) The notification names WP Squared in its patched list and does not mention DNSOnly. cPanel patched  three separate flaws in July , and ...

PaperCut has alerted customers that bad actors are actively exploiting a vulnerability impacting all versions of its PaperCut NG and PaperCut MF print management software in zero-day attacks. The company has released an emergency patch for v25 and v26 to address the issue. It said it's "aware of confirmed customer incidents and is treating this matter with the highest priority." An investigation into the incident is ongoing. The following indicators of compromise have been shared so far - Alerts from intrusion-detection, endpoint-security, or network-monitoring tools involving the PaperCut Application Server, particularly suspicious post-exploitation activity from "pc-app.exe" Missing, unexpectedly truncated, or deleted PaperCut server.log files The presence of the below entries in "server.log" - ERROR No suitable driver found for jdbc:no:x ERROR DatabaseUtils - Database error looking up cardID: VALUES CAST ...

OpenAI on Wednesday revealed that reward hacking was a key driver behind the artificial intelligence (AI)-powered hack of Hugging Face last month, adding that it found evidence of misaligned behavior as early as late May. The incident, the company said, took place during cybersecurity evaluations of several OpenAI models, and that it was mainly fueled by what it described as a "highly capable, internal-only research model" comparable in scale to GPT‑5.6 Sol. "The models, operating under reduced safeguards, took actions that were misaligned with the goals of their assigned tasks – they communicated through unauthorized channels, exploited vulnerabilities in shared infrastructure, gained internet access, and accessed third-party systems," it said in a postmortem. OpenAI said the AI agents powered by one of the research models, despite not having internet access, found a way to exploit a then-zero-day vulnerability in the Artifactory package manager during r...

Credit: Hacktron Vercel has released security patches for two critical-severity vulnerabilities in the Next.js web framework, both of which allow unauthenticated remote code execution, one exploitable via specially crafted AVIF image files and the other through a path traversal flaw affecting servers that use a Windows filesystem. The Windows path traversal, tracked as  CVE-2026-75604  (CVSS score: 9.0), affects Next.js applications that use both the Pages Router and App Router without Cache Components when the server uses a Windows filesystem. Linux and macOS deployments are not affected. "There is no known workaround for affected windows-hosted applications. You should upgrade immediately if your server is hosted on Windows,"  Vercel said in its advisory . The fixes are available in Next.js 15.5.24 (Maintenance LTS) and 16.3.3 (Active LTS), published on August 25, 2026. Affected users can upgrade by running npm install next@15.5.24 for the 15.5 l...

A fake login page. A fake security scan. A fake productivity app. Apparently, pretending to be useful is still one of the easier ways into a machine. The rest of the week gets stranger: botnets borrowing AI, command traffic hiding in public infrastructure, malicious tools waiting before showing their real behavior, exposed systems getting scanned, and exploit windows shrinking again. Different tricks, same advantage: attackers keep finding places where trust is cheap and friction is low. That sets the tone. Here’s the full list of what surfaced this week. The threats change every week. Subscribe, and we’ll alert you when each new ThreatsDay Bulletin is out.

Cybersecurity researchers have disclosed details of a vulnerability in Amazon Kiro, an artificial intelligence (AI)-powered, agentic integrated development environment (IDE), that could facilitate data exfiltration via prompt injection and Kiro Powers. The security flaw, which does not have a CVE identifier, works against Kiro IDE 0.7.45 on Windows, according to Mindgard. The latest version of the IDE is 1.0.337. "The issue allowed attacker-controlled repository content to influence the Kiro agent and ultimately cause sensitive local information to be transmitted to an external endpoint," Chief Marketing Officer Fergal Glynn  said in a report shared with The Hacker News. Kiro Powers goes beyond skills by bundling Model Context Protocol (MCP) server configurations, steering files ("POWER.md"), hooks, and contextual knowledge. The steering file is like an "onboarding manual" that provides persistent context and tells the AI agent what MCP tools are...

Security teams have spent years trying to detect threats faster. AI is changing the harder part: how much time defenders have left to act. Advanced AI models can now help attackers discover vulnerabilities, generate exploit code, and move through weaknesses faster than traditional security processes were built to handle. The challenge is no longer just finding another vulnerability or generating another alert. It is knowing which exposures matter, what an attacker can reach, and which issues need to be fixed first. That is the focus of next week's webinar, How to Build AI Threat Readiness Across Your Security Operations , featuring an expert from Wiz. The session will show how security teams can improve visibility, prioritize real risk, and shorten the path from detection to remediation. Most security teams already have plenty of data. They have vulnerability findings, cloud alerts, identity signals, application telemetry, and threat detections. The harder problem is conne...

The Australian Federal Police (AFP) has charged two Western Australian men with a combined total of 14 offences over their alleged role in TeamPCP , the cybercrime group behind the March 2026 compromise of the open-source security scanners Trivy and Checkmarx KICS and the AI gateway LiteLLM. Louis Michael Gaebler , 23, and Ruben Ian Thomson , 21, appeared in Perth Magistrates Court on August 27, 2026, a day after the AFP and the Western Australia Police Force (WAPF) executed search warrants at properties in Cottesloe, Hamilton Hill, and Mandurah and seized electronic devices for forensic analysis. Police allege the two men were principal participants in the syndicate and received payments in cryptocurrency, the value of which is still under investigation. The Federal Bureau of Investigation (FBI) said in a July 2 advisory that organizations impacted by the campaign should treat exfiltrated data and credentials as a persistent risk, since affiliated threat actors are "likely...

Individuals and organizations in Cambodia have emerged as the target of a new campaign that delivers an open-source remote access trojan (RAT) called Spark RAT . "The samples employ diverse lure themes, suggesting an effort to appeal to a broad range of potential victims. These include government notices, public health materials, real estate-related content, and other topics," Acronis Threat Research Unit (TRU) researchers Darrel Virtusio and Subhajeet Singha said in an analysis published Wednesday. The multi-stage attack is notable for employing the bring your own vulnerable driver (BYOVD) technique to load a legitimate-but-vulnerable driver associated with OPSWAT AppRemover ("ardrv.sys") to escalate privileges and neutralize security software. Attack chains likely make use of targeting phishing emails to distribute compressed archives containing an Inno Setup executable and trick recipients into running it using wide-ranging lures, including Cambodian gove...

Academic researchers have disclosed a Rowhammer attack impacting NVIDIA workstation GPUs with GDDR6 memory that defeats error correction codes (ECC), the mitigation NVIDIA recommends against GPU Rowhammer, and enables denial-of-service (DoS) and privilege escalation to a root shell. Dubbed GPUThor , the attack was developed by researchers at the University of Toronto, who hammered four DRAM banks for 24 hours each on four Ampere-class cards, inducing bit flips on each. The following GPUs were tested and found vulnerable - RTX A6000 (48 GB GDDR6) RTX A5000 (24 GB GDDR6) RTX A4500 (20 GB GDDR6) RTX A4000 (16 GB GDDR6) Mounting the attack requires the ability to launch an unprivileged CUDA kernel on the target GPU, either as a co-tenant on a shared card or as untrusted code on a single-tenant machine. The researchers advise avoiding cross-tenant GPU sharing, monitoring ECC error counters, and restricting untrusted CUDA workloads. "Recently, researchers at the U...

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Wednesday added six flaws to its Known Exploited Vulnerabilities ( KEV ) catalog, including a high-severity security vulnerability impacting Citrix NetScaler ADC and NetScaler Gateway, citing evidence of active exploitation. The vulnerabilities are listed below - CVE-2019-1068 - A remote code execution vulnerability in  Microsoft SQL Server that could allow an attacker to execute code in the context of the SQL Server Database Engine service account. CVE-2026-8452 - An improper restriction of operations within the bounds of a memory buffer vulnerability in Citrix NetScaler ADC and NetScaler Gateway that could lead to denial-of-service. CVE-2022-0995 - An out-of-bounds memory write vulnerability in  Linux Kernel that could allow a local user to gain privileged access or cause a denial of service on the system. CVE-2015-5287 - A privilege escalation vulnerability in  Red Hat Automatic B...

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has published the results of two red team assessments it conducted simultaneously against two critical infrastructure organizations, using what it described as similar tradecraft while recording sharply different defensive outcomes. Both organizations were fully compromised at the domain level, and in both, the red team also reached sensitive business systems (SBSs) and cloud resources. The advisory, tracked as AA26-237A and titled "A Tale of Two SOCs," was released on August 25, 2026. CISA identified the first target only as a Government Services and Facilities Sector organization, referred to as Organization A , and the second as a Water and Wastewater Systems Sector entity, referred to as Organization B . "CISA conducted two simultaneous red team assessments using similar tradecraft but observed different defensive responses," the agency said in the advisory. Against Organization A, the re...

The CERT Coordination Center (CERT/CC) has disclosed two unpatched vulnerabilities in Kaltura's HTML5 video player library that allow a remote, unauthenticated attacker to read arbitrary files from a server and execute code on it. The flaws, tracked as CVE-2026-19913 and CVE-2026-19912 , both stem from the same unsafe deserialization in the mwEmbedLoader.php endpoint of the mwEmbed player library, which Kaltura also distributes as html5lib. Neither requires authentication or a Kaltura session token, and network access to the endpoint is the only precondition CERT/CC states. No patch is available, and CERT/CC said it was "unable to reach Kaltura to coordinate these vulnerabilities." Administrators are advised to restrict or disable external access to the endpoint and to enforce a strict allow-list for the ServiceUrl parameter that permits only legitimate backend API URLs. No exploitation had been reported at the time of writing, and neither CVE appeared in CISA...

Aikido Security has published research that recreates the Australian gym-booking incident in a synthetic environment, finding that Claude Opus 4.6, running on the OpenClaw agent harness, exploited a client-side-only booking restriction in 9 of 10 runs. The original incident was first reported by ABC News on August 10, based on chat logs and screenshots the user supplied. He had asked an OpenClaw agent running Opus 4.6 to book him into a gym class. The agent booked sessions months beyond the window the site allowed. It then tested, without being asked, whether the same API would let it cancel another member's waitlist entry. The test removed the person holding the top place and moved the user up one position. The agent told him it could not add the member back. Aikido's test system is a single-page web application backed by a GraphQL API carrying the two flaws described in the original incident. The seven-day booking window is enforced only in the frontend, and the cancel...

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Tuesday warned of active exploitation efforts targeting a recently patched critical security flaw impacting Gitea. The vulnerability in question is CVE-2026-60004 (CVSS score: 9.8), a case of remote code execution that allows an attacker with ordinary write access to a repository to execute arbitrary shell commands as the Gitea OS user. "Gitea's diffpatch endpoint can be abused to install and execute a Git hook from repository-controlled content," according to an advisory released by Gitea last month. "With default open registration, an unauthenticated visitor can obtain the required write access by registering an account and creating a repository." Security researcher Shai rod (aka NightRang3r) has been credited with discovering and reporting the issue. The issue affects all versions of Gitea from version 1.17 and has been patched in version 1.27.1. As The Hacker News reported pre...