Security | Threat Detection | Cyberattacks | DevSecOps | Compliance

On October 21, 2026, Node.js fixed CVE-2026-111497, now known as Node2Shell. The bug is in its bundled Brotli decoder, the component that unpacks compressed data. A crafted compressed stream makes the decoder write data outside the memory set aside for it, known as an out-of-bounds write. That can overwrite data the application relies on, so an attacker can crash the application, leak memory or run attacker code. Public proof-of-concept code was published within 24 hours.

Two critical vulnerabilities in the PHP core, tracked as CVE-2026-109618 and CVE-2026-109619 and nicknamed PHP2Shell, let an unauthenticated attacker run commands on servers that use an affected PHP build to handle web requests. PHP released fixes on October 21, 2026, a day after details leaked online. Public proof-of-concept code followed within hours, and exploitation attempts were seen as early as October 17. AppTrana customers have been protected against PHP2Shell.

A critical remote code execution vulnerability was disclosed in Next.js on September 22, 2026, and an out-of-band security update was released to fix it. CVE-2026-94545 is a remote code execution vulnerability in next/og, the feature Next.js applications use to generate images on demand. The GitHub advisory rates it 9.5 on CVSS v4.0. An unauthenticated attacker can reach it over the network, and the root cause is an upstream SVG-escaping vulnerability that applications inherit without realizing it.

WordPress patched CVE-2026-87902 on September 22, 2026. Attackers were exploiting it the same day. Within hours of disclosure, attackers progressed from reconnaissance to active exploitation attempts, including attempts to write malicious PHP files to disk. The vulnerability is critical, with a CVSS v4.0 score of 9.2. Unauthenticated attackers can exploit it remotely. A public scanning template is already in circulation, and CISA has added the vulnerability to its KEV catalog.

A critical SQL injection vulnerability has been identified in cPanel & WHM’s EmailTrack functionality. The vulnerability was disclosed by cPanel on September 8, 2026, affecting every supported release line. It allows an authenticated cPanel account holder with mail related privileges to ultimately achieve root-level code execution on the underlying host.

Quantum computers could very soon undermine the public-key cryptography that secures financial transactions, health records, and other sensitive data moving over TLS today. When that happens, encrypted information protected by vulnerable cryptography could become accessible. Encrypted traffic can be intercepted and stored today, with the expectation that it will be decrypted once a sufficiently capable quantum computer exists.

For years, our security team has run pentests against business-critical applications across industries, and one pattern stands out. The vulnerabilities that are the most difficult to remediate are business logic vulnerabilities: IDOR, broken access control, privilege escalation, and multi-step workflow abuse. These are the kind of vulnerabilities pentest experts find by noticing a broken assumption behind one API call and chasing it until the full exploit path becomes clear.

A critical remote code execution vulnerability has been identified in Langflow. The vulnerability was first reported to the vendor in mid-2025 and disclosed publicly as a zero-day in January 2026. Exploitation attempts rose sharply in late August 2026, moving from isolated probing to continuous, multi-source scanning within days.

CVE-2026-55040, a critical SharePoint authentication bypass, is now being actively exploited. A proof-of-concept went public on August 11. Within 24 hours, threat intelligence firm Defused confirmed exploitation attempts against its SharePoint honeypots using that same PoC. Over 8,500 SharePoint servers remain reachable from the open internet, putting unpatched instances at immediate risk.

Hosting environments run on a basic assumption: an account with limited permissions should stay limited. CVE-2026-58048 breaks that assumption inside cPanel & WHM. Any authenticated account with MySQL or MariaDB feature access, including a standard low-privilege hosting account, can now escalate to root-level database privileges through a database rename operation. A public proof-of-concept already exists, which means the barrier to exploitation is low and the window to act is short.