2026-06-087 minJun 1 – Jun 8

Weekly Recap — 2026-06-01 -> 2026-06-08

Trojanized Build Pipelines and Blind-Spot Appliances Redefine the Perimeter Attackers are bypassing traditional network defenses by compromising the tools developers use to build software and the AI assistants they rely on to write code. Campaigns like Mini Shai-Hulud and Miasma - The Spreading Blight flooded package registries with malicious code that steals cloud credentials and CI/CD tokens, while researchers proved that public AI agent skill marketplaces are completely ineffective at catching malicious add-ons. Nation-state actors and cybercriminals are simultaneously shifting their focus to blind spots in corporate networks and trusted platforms. The VerdantBamboo group exploited firewalls to bypass conditional access, while UNC3753 used IT impersonation to trick law firm employees into installing remote access tools, and Kali365 expanded its phishing infrastructure to steal multi-factor authentication tokens. Defenders must shift their focus from perimeter email filtering to securing the software build pipeline and monitoring edge appliances for anomalous traffic. Hunt for unexpected connections to cloud storage APIs and review developer environments for compromised packages or AI skills.

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By the Numbers

Total articles: 36
By severity: Critical: 4, High: 25, Medium: 7
By category: APT: 5, general security news: 4, malware: 10, phishing/social engineering: 2, threat actor: 1, vulnerability: 14

Top Threats

Developer Supply Chain and AI Tool Compromise

By moving left in the software development lifecycle, attackers are compromising open-source registries and AI skill marketplaces to steal cloud credentials before applications even reach production. Campaigns like Shai-Hulud and Miasma inject obfuscated loaders into npm and PyPI packages, exfiltrating CI/CD secrets via GitHub dead-drops and even injecting malicious hooks into local AI coding assistants to maintain persistence.

Edge Infrastructure and Hardcoded Credential Exploitation

Threat actors are targeting network appliances and industrial control systems that lack endpoint detection and ship with hardcoded credentials, using them as persistent proxies to bypass conditional access policies. VerdantBamboo leveraged compromised firewalls and storage sync devices to access Microsoft 365 environments, while CISA warnings on Automatic Tank Gauges and NAVTOR NavBox demonstrate how hardcoded passwords in critical infrastructure invite easy takeover.

Nation-State Espionage Alliances and Hybrid Threats

APT groups are forming collaborative divisions of labor and blending cyber operations with physical sabotage, expanding the threat beyond data theft to real-world harm. Gamaredon handed initial access to Turla for advanced espionage against Ukraine, while Iran's MOIS expanded its Handala brand to recruit civilians for physical arson and espionage via Telegram bots, signaling a dangerous convergence of cyber and physical attack vectors.

Accelerated Initial Access and Phishing Innovations

From weaponizing legitimate platforms to using AI to automate evasion, attackers are collapsing the time-to-persistence and bypassing traditional email and endpoint defenses. UNC3753 used vishing and IT impersonation to trick law firm employees into installing RMM tools, while Kali365 expanded its PhaaS infrastructure to bypass MFA, and attackers abused Zoom's legitimate email infrastructure to slip phishing lures past secure email gateways.

CVE-2026-28318 (2 mentions) — SolarWinds Serv-U uncontrolled resource consumption vulnerability, actively exploited in the wild. Sources: 1, 2
CVE-2025-48595 (2 mentions) — Android Framework vulnerability under limited, targeted exploitation. Sources: 1, 2
CVE-2022-0492 (2 mentions) — Linux Kernel vulnerability added to CISA KEV catalog and used in container escapes. Sources: 1, 2
CVE-2026-33829 (1 mentions) — Unpatched NTLM coercion vulnerability in Windows search URI handler. Sources: 1
CVE-2026-45247 (1 mentions) — Mirasvit Full Page Cache Warmer deserialization vulnerability actively exploited. Sources: 1
CVE-2024-21182 (1 mentions) — Oracle WebLogic Server vulnerability actively exploited. Sources: 1
CVE-2026-21404 (1 mentions) — NAVTOR NavBox hardcoded credentials vulnerability allowing local privilege escalation. Sources: 1

Sector Trends

Legal and Professional Services — UNC3753 is aggressively targeting US law firms using IT impersonation and vishing to install RMM tools, exfiltrating data within a single business day and threatening publication. Sources: 1
Maritime and Energy Infrastructure — Critical infrastructure systems like NAVTOR NavBox, Hitachi Energy MACH HiDraw, and Automatic Tank Gauges are exposed by hardcoded credentials and vulnerabilities that risk physical disruption. Sources: 1, 2, 3, 4
Sports and Entertainment — The upcoming 2026 FIFA World Cup faces significant physical and digital risks, including state-sponsored espionage targeting VIPs and cybercriminals setting up fake merchandise stores. Sources: 1, 2

Notable Incidents

Hola Browser Supply Chain Compromise — An undeclared XMRig crypto-miner was bundled directly inside the Hola Browser installation files due to a supply chain compromise, highlighting risks in consumer software distribution pipelines.
VECT Ransomware Botched Encryption — VECT ransomware contains severe implementation flaws that make reliable file decryption impossible, meaning victims will permanently lose data even if they pay the ransom.
Gamaredon and Turla Espionage Alliance — Two major Russian APT groups formed a collaborative division of labor, with Gamaredon handling initial access and handing off high-value targets to Turla for advanced espionage.