Protocol Buffers schemas expose remote code execution risk

A widely used JavaScript implementation of Google’s Protocol Buffers format is placing too much trust in untrusted data, exposing affected applications to remote code execution and other attacks.

Researchers at Cyera have disclosed six vulnerabilities affecting “protobuf.js,” all stemming from the library’s handling of schema and metadata. Attackers could exploit an input validation oversight to…

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HP Poly VoIP vulnerability sets the stage for executive voice deepfakes

HP has released patches for a critical buffer overflow vulnerability in multiple IP-enabled conference phones from its Poly Voice line. The flaw allows unauthenticated attackers to obtain root privileges on the underlying operating system, potentially enabling them to execute other attacks such as eavesdropping on conversations and recording voice data for AI-enabled impersonation attacks.

The…

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Attackers exploit Palo Alto GlobalProtect flaw days after disclosure

A Palo Alto Networks vulnerability that allows attackers to establish unauthorized VPN access into corporate networks is being actively exploited in the wild, weeks after the company disclosed the flaw as a medium-severity issue and said it was unaware of any attacks.

However, according to Rapid7, threat actors began exploiting the bug within days of disclosure.

“Rapid7 MDR identified…

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Microsoft and security researcher’s dueling posts about cybersecurity disclosures get nasty

Microsoft and a prominent cybersecurity researcher have gotten into a very public and rather personal exchange of unpleasantries about what responsible cybersecurity disclosures should mean in 2026.

A cybersecurity researcher going by the name Nightmare Eclipse, who has disclosed several cybersecurity holes before patches were available, posted that he had tried to contact Microsoft officials…

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Notepad++ vulnerabilities could enable arbitrary code execution on Windows systems

Two arbitrary code execution vulnerabilities in Notepad++ let local attackers run commands of their choice on Windows machines by tampering with the editor’s XML configuration files, with both flaws rated High at CVSS 7.8.

The flaws, tracked as CVE-2026-48778 and CVE-2026-48800, affect every version of the editor up to and including 8.9.6, Notepad++ said in a release note. However, the…

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Unpatched ChromaDB flaw leaves servers open to remote code execution

Researchers have published details about a critical vulnerability in ChromaDB that could allow unauthenticated attackers to execute arbitrary code and access sensitive data on machines running the open-source vector database.

The issue, tracked as CVE-2026-45829, is located in ChromaDB’s API server and was published by researchers at HiddenLayer after reportedly failing to get in contact with…

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Drupal admins rushing to patch maximum severity SQL injection vulnerability

Administrators of the Drupal open source content management platform are rushing to install an emergency patch issued today to fix a “highly critical” SQL injection vulnerability in the application’s core.

While the vulnerability only affects websites that use the PostgreSQL database, there may be upstream issues with Symfony, a set of PHP packages and web application frameworks used by Drupal,…

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Meet Fragnesia, the third Linux kernel vulnerability in a month

Linux admins reeling from handling last month’s CopyFail and last week’s Dirty Frag kernel vulnerabilities have a new headache to deal with: Fragnesia.

“This is a significant vulnerability,” Robert Beggs, head of incident response firm DigitalDefence, told _CSO_. “It is bypassing traditional filesystem permissions that are present and enforced (for example, ‘file is owned by root’, or ‘file is…

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cPanel flaw exposes enterprises to hosting supply-chain risks

A newly disclosed cPanel vulnerability is being exploited at scale, giving attackers a route into web hosting environments that many enterprises may not monitor closely. Analysts say the risk highlights weak visibility into hosting supply chains.

The flaw, tracked as CVE-2026-41940, has been used to deploy backdoors, plant SSH keys, steal credentials, and compromise hosting systems, according to…

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New ‘Dirty Frag’ exploit targets Linux kernel for root access

A newly disclosed Linux privilege escalation issue dubbed “Dirty Frag” is giving attackers a cleaner path to post-compromise escalation to root privileges.

According to Microsoft, a couple of vulnerabilities constituting the issue, affecting Linux kernel networking and memory-fragment handling components, are already seeing active exploitation in the wild. The exploitation attempts look…

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Five new holes, one exploited, found in Ivanti Endpoint Manager Mobile

The five new vulnerabilities discovered in Ivanti’s on-premises mobile endpoint management solution are a “classic example of the legacy trap” that CSOs must avoid, says an expert.

“Patch today to survive the weekend,” said Robert Enderle of the Enderle Group, “but start planning your exit from legacy MDM as soon as possible.”

He was commenting on an advisory issued Thursday by Ivanti about the…

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‘Trivial’ exploit can give attackers root access to Linux kernel

CSOs must ensure their Linux-based systems block unauthorized privilege escalation until distros release patches to plug a serious kernel vulnerability affecting all Linux distributions shipped since 2017.

Until fixes are available for what’s been dubbed the Copy Fail logic bug (CVE-2026-31431_),_ which lets users easily obtain root access, there isn’t much CSOs can do, says Johannes Ullrich,…

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Critical GitHub RCE bug exposed millions of repositories

A critical remote code execution (RCE) vulnerability in GitHub could potentially allow attackers to execute arbitrary code on GitHub.com and GitHub Enterprise Server.

Uncovered by Wiz researchers, the now-patched bug exploited how GitHub handles server-side “git push” operations. By crafting malicious input within a standard Git push, an authenticated user could execute arbitrary commands via…

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Prompt injection turned Google’s Antigravity file search into RCE

Security researchers have revealed a prompt injection flaw in Google’s Antigravity IDE that could be weaponized to bypass its sandbox protections and achieve remote code execution (RCE).

The issue came from Antigravity’s ability to allow AI agents to invoke native functions, like searching files, on behalf of the user. Designed to kill complexity, the feature could allow attackers to inject…

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Critical flaw in Marimo Python notebook exploited within 10 hours of disclosure

A critical pre-authentication remote code execution vulnerability in Marimo, an open-source Python notebook platform owned by AI cloud company CoreWeave, was exploited in the wild less than 10 hours after its public disclosure, according to the Sysdig Threat Research Team.

The vulnerability, tracked as CVE-2026-39987 with a severity score of 9.3 out of 10, affects all Marimo versions before…

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Seven IBM WebSphere Liberty flaws can be chained into full takeover

Security researchers are warning of a set of flaws affecting IBM WebSphere Liberty, a lightweight, modular Java application server, that can be chained into a full server compromise.

The flaws, a total of seven, that led to the ultimate compromise of the server were initiated by a newly discovered pre-authentication issue in the platform’s SAML Web SSO component that enables low-privilege…

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5-month-old F5 BIG-IP DoS bug becomes critical RCE exploited in the wild

A vulnerability misclassified five months ago as a denial-of-service issue in F5 BIG-IP Access Policy Manager (APM) turned out to be a critical pre-authentication remote code execution flaw that is now under active exploitation. Hackers are using it to deploy a persistent malware program that runs with root privileges.

The CVE-2025-53521 vulnerability was first disclosed in October 2025 as a DoS…

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Fortinet hit by another exploited cybersecurity flaw

Yet another critical flaw in a Fortinet product has come to light as attackers continue to target the company, this time by actively exploiting a critical SQL injection vulnerability in the cybersecurity company’s management server.

The vulnerability, (CVE-2026-21643), allows unauthenticated threat actors to execute arbitrary code on unpatched systems via specifically-crafted HTTP requests.…

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LangChain path traversal bug adds to input validation woes in AI pipelines

Security researchers are warning that applications using AI frameworks without proper safeguards can expose sensitive information in basic, yet critical, non-AI ways.

According to a recent Cyera analysis, widely used AI orchestration tools, LangChain and LangGraph, are vulnerable to critical input validation flaws that could allow attackers to access sensitive enterprise data.

In a recent blog…

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Trivy vulnerability scanner backdoored with credential stealer in supply chain attack

Attackers have compromised the widely used open-source Trivy vulnerability scanner, injecting credential-stealing malware into official releases and GitHub Actions used by thousands of CI/CD workflows. The breach could trigger a cascade of additional supply-chain compromises if impacted projects and organizations don’t rotate their secrets immediately.

The attack, disclosed by Trivy maintainers…

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Nine critical vulnerabilities in Linux AppArmor put over 12M enterprise systems at risk

Security researchers at Qualys have disclosed nine vulnerabilities in AppArmor, the Linux Security Module that ships enabled by default across Ubuntu, Debian, and SUSE distributions.

An unprivileged local attacker can exploit the flaws to gain full root access, break out of container isolation, and crash systems, all without requiring administrative credentials, the researchers said in a blog…

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Veeam warns admins to patch now as critical RCE flaws hit Backup & Replication

Backup vendor Veeam has released security updates to patch multiple vulnerabilities in its widely used Backup and Replication platform, including three critical flaws that could allow authenticated users to execute code on backup servers.

Detailed in the company’s advisory KB4830, the vulnerabilities affect Veeam Backup & Replication 12.3.2.4165 and earlier version 12 builds, with fixes now…

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Critical flaw in HPE Aruba CX switches lets attackers seize admin control without credentials

HPE Aruba Networking has released patches for five vulnerabilities in its AOS-CX switch software, the most severe of which could let a remote attacker take administrative control of enterprise network switches without any credentials.

The critical flaw, CVE-2026-23813, scored 9.8 out of 10 on the CVSSv3.1 scale. According to a security advisory HPE published on Tuesday, the vulnerability sits in…

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New Serv-U bugs extend SolarWinds’ run of high-severity disclosures

SolarWinds continues to be besieged by security issues, this time in its Serv-U managed file transfer server.

The software company has released four patches for critical Serv-U remote code execution (RCE) vulnerabilities that could allow attackers to gain root (administrator) access to unpatched servers. These four common vulnerabilities and exposures (CVEs) are rated “critical,” the highest…

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VMware fixes command injection flaw in Aria Operations

VMware has released patches for several high- and medium-risk vulnerabilities that impact its Aria Operations, Cloud Foundation, Telco Cloud Platform, and Telco Cloud Infrastructure products.

The most serious of these flaws allows unauthenticated attackers to execute arbitrary commands on the underlying OS, while another gives authenticated users the ability to elevate to administrator…

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Attackers exploit Ivanti EPMM zero-days to seize control of MDM servers

Attackers are actively exploiting two critical zero-day vulnerabilities in Ivanti’s Endpoint Manager Mobile (EPMM) to gain unauthenticated control of enterprise mobile device management infrastructure and install backdoors engineered to persist even after organizations apply available patches.

“Two critical zero-day vulnerabilities (CVE-2026-1281 and CVE-2026-1340) affecting Ivanti Endpoint…

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Millionen Chrome-Erweiterungen geben Browserverlauf preis

width="2489" height="1400" sizes="auto, (max-width: 2489px) 100vw, 2489px">Eine Sicherheitslücke in beliebten Chrome-Erweiterungen führt dazu, dass der Browserverlauf der Anwender offengelegt ist.

2lttgamingroom – shutterstock.com

Ein Sicherheitsforscher mit dem Pseudonym „Q Continuum“ hat 287 Chrome-Erweiterungen entdeckt, die den Browserverlauf exfiltrieren. „Die Akteure hinter den Lecks sind…

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Flaws in four popular VS Code extensions left 128 million installs open to attack

Critical and high-severity vulnerabilities were found in four widely used Visual Studio Code extensions with a combined 128 million downloads, exposing developers to file theft, remote code execution, and local network reconnaissance.

Application security company OX Security published the findings this week, saying it had begun notifying vendors in June 2025 but received no response from three…

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February 2026 Patch Tuesday: Six new and actively exploited Microsoft vulnerabilities addressed

Microsoft highlighted six new and actively exploited vulnerabilities among the 60 fixes issued in today’s February Patch Tuesday releases.

However, Tyler Reguly, associate director of security R&D at Fortra, says there’s good news: The issues are easy to resolve with regular Microsoft patches for Windows and Office, and none require any post patch configuration steps.

Still, CSOs should be…

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Four new vulnerabilities found in Ingress NGINX

Four security vulnerabilities have been found in the open source Ingress NGINX traffic controller that is extensively used by organizations in Kubernetes deployments.

They can only be fixed by upgrading to the latest version.

Of the four holes, two are more serious, because they carry CVSS scores of 8.8:

CVE-2026-1580 is an improper input validation issue. If the Ingress NGINX controller is…

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