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Eliad Mualem

npm shai hulud worm escalation
September 16, 2025

npm Supply Chain Attack: Shai Hulud Worm Escalates August Nx Compromise

Eliad Mualem, Tamir Boker September 16, 2025
On September 16, 2025, a large-scale npm supply chain attack was discovered, which seems to be linked to the same threat actors behind the August 27 Nx compromise (under ongoing investigation). Dubbed Shai Hulud, this self-propagating worm has infected nearly 40 npm packages, including several from CrowdStrike, by harvesting secrets from CI/CD pipelines and cloud…
CVE_2024_12718_Path_Escape_via_Python’s_tarfile_Extraction_Filters
June 3, 2025

CVE-2024-12718: Path Escape via Python’s tarfile Extraction Filters

Eliad Mualem June 03, 2025
A newly disclosed vulnerability in Python’s standard library, CVE-2024-12718, allows attackers to modify file metadata or file permissions outside the intended extraction directory. This issue affects systems running Python 3.12 and above when using tarfile.extract() or tarfile.extractall() with the filter parameter set to "data" or "tar". Though the vulnerability does not allow direct code execution,…
Linux-Kernel-CVE-2025-37899
May 27, 2025

Linux Kernel SMB 0-Day Vulnerability CVE-2025-37899 Uncovered Using ChatGPT o3

Eliad Mualem May 27, 2025
For the first time, a zero-day vulnerability in the Linux kernel has been discovered using a large language model, OpenAI’s o3. Discovered by security researcher Sean Heelan and assigned CVE-2025-37899, this vulnerability marks a milestone not just in cybersecurity but in the integration of AI into vulnerability research. It also raises serious questions about the…
Blue and red gradient lines curve upward against a light blue background, intersected by orange circles. The word upwind with an underlined u appears in the upper left corner.
April 18, 2025

Unpacking the Security Risks of Model Context Protocol (MCP) Servers

Modern AI systems, especially large language models (LLMs), are no longer isolated engines responding to static inputs. They’re evolving into intelligent agents, copilots, and autonomous systems that interact with their environment, reason over external data, and adapt in real time. But there’s a fundamental problem: LLMs are powerful, but they don’t know anything outside of…
A white warning icon with an exclamation mark is centered on a bright pink, patterned background. Below it, text reads: CVE-2025-32433: Critical Erlang/OTP SSH Vulnerability (CVSS 10).
April 17, 2025

CVE-2025-32433: Critical Erlang/OTP SSH Vulnerability (CVSS 10)

Eliad Mualem April 17, 2025
On April 16, 2025, a critical remote code execution (RCE) vulnerability in Erlang's SSH library was publicly disclosed. Tracked as CVE-2025-32433, this vulnerability received the maximum possible CVSS score of 10.0, signaling how severe and exploitable it is, especially in environments relying on Erlang/OTP for SSH access. Overview What is CVE-2025-32433? Discovered by researchers at…
Hexagonal icon with an N inside on a pink gradient background with angular lines. Text: IngressNightmare: Admission Webhook Flaw Leading to Remote Code Execution (CVE-2025-1974).
March 25, 2025

IngressNightmare: How New ingress-nginx Vulnerabilities Threaten Kubernetes Clusters

Eliad Mualem March 25, 2025
Kubernetes administrators take note: a critical set of vulnerabilities in the popular ingress-nginx controller—collectively dubbed “IngressNightmare”—could put your entire cluster at risk. In particular, CVE-2025-1974, with a CVSS score of 9.8, allows attackers to take over Kubernetes clusters simply by exploiting the Validating Admission Controller feature. Because ingress-nginx runs in roughly 40% of Kubernetes deployments,…
A pink background with concentric circles and a white bug icon in the center. Text reads, Next.js Middleware Authentication Bypass Vulnerability (CVE-2025-29927). Upwind logo in the top right corner.
March 24, 2025

Next.js Middleware Authentication Bypass Vulnerability (CVE-2025-29927)

Eliad Mualem March 24, 2025
Next.js middleware plays a key role in securing applications by enforcing authentication, managing access control, and applying security headers. However, a newly discovered vulnerability, CVE-2025-29927, allows attackers to bypass these protections entirely using a manipulated HTTP header. Affected Versions This flaw affects the following versions: The Core Issue Next.js prevents infinite middleware loops by tracking…
A pink and red gradient graphic with a target symbol at the center. Text reads: OpenSSH Vulnerabilities Enable Man-in-the-Middle and DoS Attacks (CVE-2025-26465 & CVE-2025-26466). The upwind logo is in the top right corner.
February 18, 2025

OpenSSH Vulnerabilities CVE-2025-26465 and CVE-2025-26466 Enable Man-in-the-Middle and DoS Attacks

Avital Harel, Eliad Mualem February 18, 2025
On February 18, 2025, two critical vulnerabilities were disclosed in OpenSSH, a widely used secure networking utility suite. These flaws, identified as CVE-2025-26465 and CVE-2025-26466, pose significant security risks: Discovery and Response The vulnerabilities were uncovered by the Qualys Threat Research Unit (TRU). They affect OpenSSH client versions 6.8p1 through 9.9p1 and 9.5p1 through 9.9p1,…
A red background with a white bug icon symbolizes a critical vulnerability. The text reads: Critical Vulnerability Impacting FortiOS and FortiProxy Systems (CVE-2024-55591) with Upwind logo in the top-right corner.
January 14, 2025

New CVE-2024-5591 Zero-Day Exploitation of Fortinet Firewalls 

Eliad Mualem January 14, 2025
On January 14, 2025, Fortinet announced a critical vulnerability impacting its FortiOS and FortiProxy systems, CVE-2024-55591 is an authentication  bypass zero-day vulnerability that has been actively exploited since mid-November 2024, enabling attackers to hijack Fortinet firewalls and compromise enterprise networks. Successful exploitation grants remote attackers super-admin privileges via malicious requests to the Node.js websocket module. Discovery…
Abstract pink and red circular design with a small shield icon containing a white virus symbol at the center. The image has a modern, minimalist style, accompanied by the text upwind in the top left corner.
January 14, 2025

Introducing New Runtime Security Features for Modern Containerized Environments

Eliad Mualem January 14, 2025
At Upwind Security, we continuously enhance our security capabilities to address emerging threats and provide unparalleled runtime protection for containerized environments. In this update, we are excited to introduce new detection and prevention policies designed to secure workloads against sophisticated attacks.  Next-Generation Threat Detections Over the past several weeks we have added additional detection policies…
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