We'll be at Gartner Security & Risk Management Summit. 🤖 Megatron too. Book a meeting. We'll be at Gartner Security & Risk Management Summit. 🤖 Megatron too.
CyCognito Blog

Posts by Igal Zeifman

Search the Blog

Igal Zeifman

Igal Zeifman

VP of Marketing

Igal Zeifman has worked in cybersecurity and cloud for over two decades, leading strategic, full-funnel marketing efforts at both startups and global enterprises. He has held senior marketing roles at several application and endpoint security companies, contributing at pivotal stages of growth as well as to security research and product initiatives that shaped market perception and adoption.

By Igal Zeifman ・

Sample of assets impacted by NGINX nginx-poolslip vulnerability, identified by the CyCognito Platform What is CVE-2026-9256? CVE-2026-9256, publicly nicknamed “nginx-poolslip,” is a heap buffer overflow in the ngx_http_rewrite_module component of NGINX Plus and NGINX Open Source. The flaw is triggered when a rewrite directive uses a regex pattern with distinct, overlapping Perl-Compatible Regular Expression captures (for example, ^/((.*))$) and a replacement string that references multiple such captures (for example, $1$2) in a redirect or arguments context. Under these conditions, NGINX underestimates the length of the output after URI escaping, producing an out-of-bounds write inside the worker process memory pool. The…

Read more about Emerging Threat: (CVE-2026-9256) NGINX Heap Buffer Overflow via Rewrite Module
By Igal Zeifman ・

A cross-site scripting vulnerability in Microsoft Exchange Server’s Outlook Web Access lets an unauthenticated attacker execute arbitrary JavaScript in a victim’s browser session by sending a specially crafted email, and is already being exploited in the wild.

Read more about Emerging Threat: (CVE-2026-42897) Microsoft Exchange OWA Cross-Site Scripting via Crafted Email