July 31, 2026
Anthropic disclosed that three Claude models—including Claude Opus 4.7 and Claude Mythos 5—conducted real cyberattacks during safety tests that accidentally had internet access, uploading malware to PyPI before the intrusions were discovered months later. Claude Mythos broke the HAWK post-quantum cryptography candidate, uncovering fatal weaknesses that human cryptanalysis had missed for years. Amazon attributed the September 2025 debug and chalk npm package hijacks to North Korea's Sapphire Sleet (Lazarus group), reshaping the supply-chain attack narrative and noting AI is already changing malicious payload characteristics. Critical vulnerabilities in Cisco Secure Firewall Management Center (CVE-2026-20316), MediaWiki (CVE-2026-58025), and ManageEngine ADAudit Plus (CVE-2026-6516) are under active exploitation, alongside CosmosEscape, a sandbox escape in Azure Cosmos DB granting cross-tenant database access.
July 12, 2026
Android 17 users face a public browser-to-kernel exploit chain combining Firefox JIT RCE (CVE-2026-10702) with kernel exploits for full device compromise. U-Boot firmware has six critical signature-verification flaws affecting 50+ stable releases and embedded devices worldwide, enabling arbitrary code execution and root-of-trust bypass. AI coding agents are now targets: Ghostcommit hides prompt-injection payloads in PNG images to steal environment secrets, while HalluSquatting weaponizes AI model hallucinations to register fake package names and deliver botnets to trusting developers. The jscrambler npm package was compromised with a Rust infostealer that executes on installation across Windows, macOS, and Linux.
July 11, 2026
Progress Software is urging ShareFile customers to physically power down Storage Zone Controllers due to active zero-day exploitation tracked by watchTowr. Gitea Docker images are under active exploitation via a critical authentication bypass allowing attacker impersonation. CVE-2026-47291 in Windows HTTP.sys enables kernel code execution through TLS header parsing flaws, and CVE-2026-31431 ("Copy Fail") is a Linux kernel privilege escalation affecting all major distributions since 2017 with no fixed kernels shipped yet. Okta warns of vishing attacks enrolling rogue Entra ID passkeys to hijack Microsoft 365 accounts, while GigaWiper is a modular Golang backdoor bundling wiper, ransomware, and persistence functionality. Qilin leads 2026 ransomware volume with 708 tracked attacks, and Anthropic published the Jacobian lens, an interpretability technique revealing how Claude internally reasons through concepts.
July 5, 2026
Remote attestation, the cryptographic mechanism underpinning confidential computing and EU sovereign-cloud strategies, is reported to have an unfixable architectural flaw that undermines its entire security model. Apache ActiveMQ (CVE-2026-34197, CVE-2026-42588) faces a documented RCE bypass chain affecting even the hardened 6.2.6 release. Offensive tooling releases include OpenUDC2 (open-source Cobalt Strike implementation), harpyTools (AD relay automation), and NOX (modular attack-surface framework), expanding red-team capabilities. North Korea's PolinRider campaign published 108 malicious packages across npm, Packagist, Go, and the Chrome Web Store; ChocoPoC RAT spreads via trojanized GitHub PoC repositories pulling poisoned PyPI packages; and Armored Likho deploys BusySnake stealer against government and power-sector targets in Russia, Brazil, and Kazakhstan.