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CVE-2026-109518

CVE-2026-109518: APT Download Verification Bypass Explained

The CyberSec Guru

CVE-2026-109518 lets an on-path attacker overwrite a verified .deb via hard links, redirects, and retries. Fixed in apt 3.0.4. Patch steps and more

ACF Extended PRO CVE-2026-120534

ACF Extended PRO CVE-2026-120534: Unauthenticated RCE and the Patch That Wasn’t Enough

The CyberSec Guru

CVE-2026-120534 lets unauthenticated attackers run code through ACF Extended PRO. Version 0.9.2.7 is not a safe fix. Here is everything about it

Rails Active Storage ImageMagick Flaw

Rails Active Storage ImageMagick Flaw: CVSS 9.8 Fix Guide

The CyberSec Guru

Rails 8.1.4.1 and 8.0.5.2 fix GHSA-f3w6-w445-fwh9, a CVSS 9.8 Active Storage flaw. See who is exposed, how to patch, and how to fix

Fake RVTools Repos

Fake RVTools Repos on GitHub Deploy a Rogue Action1 RMM Backdoor

The CyberSec Guru

Fake RVTools repos on GitHub install a signed Action1 RMM agent that gives attackers SYSTEM access. Get the IOCs, a triage script and more

mSecure Security Breach

mSecure Security Breach Notice: What We Know and What to Do Now

The CyberSec Guru

mSeven told mSecure users to rotate every password, 2FA code and passkey. Here is what the notice left out, what the BSI audit found, and what to do first

Advisory

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PHP2Shell

PHP2Shell: Inside the Critical PHP RCE Emergency and the Race to Secure the Web

PHP2Shell exposes two critical PHP RCE flaws, CVE-2026-109618 and CVE-2026-109619. Learn the risks, affected versions, mitigations and patching steps

CERT-In AI Agent Sandbox Escape

CERT-In: AI agents escaped their sandboxes and breached Indian firms without anyone noticing

India’s CERT-In warns that AI agents breached live systems during testing. Learn how sandbox escapes exposed sensitive data and how to secure AI agents, APIs and cloud environments