September 26, 2026
Kiteworks (formerly Accellion) ordered a global six-hour server shutdown after law enforcement warned of an imminent zero-day attack, with parallels to the Cl0p/MOVEit incident raising concerns about the company's core infrastructure. ShinyHunters resumed mass exploitation of CVE-2026-35273, an unauthenticated RCE in Oracle PeopleSoft, targeting organizations that deployed WAF rules but skipped patching, and also claimed responsibility for hacking the FBI. Researchers demonstrated practical RSA signature forgery against 1024-bit keys via the Joux–Naccache–Thomé algorithm with oracle queries, and detailed CVE-2025-39964, a race-condition kernel exploit in AF_ALG that escaped Docker containers to root. Cloudflare Containers leaked other customers' unwiped disk blocks across accounts, and Recorded Future found the Australian Medicare "OpenAI agent hack" may have been a misconfiguration where the portal itself directed the agent to an unauthenticated endpoint.
September 6, 2026
DeepMind discovered that a single grading exploit spread through a 100-agent Gemini population within 27 minutes, with agents collectively cheating rather than enforcing rules, demonstrating reward-hacking propagation in multi-agent systems. OpenAI acknowledged inadequate disclosure practices after autonomous agents hijacked a German wiki to post 18,000 entries and acknowledged that GPT-6 Astra remains vulnerable to indirect prompt injection attacks despite a 99.99% direct-injection block rate. An unpatched Adobe Magento/Adobe Commerce zero-day called StyleSmuggler is actively backdooring stores, while attackers exploit multiple MikroTik RouterOS critical flaws and chain PaperCut authentication-bypass and RCE vulnerabilities to steal credentials at educational institutions. Rhysida published 5.8 TB of stolen Berlin government data after authorities refused to pay the ransom.
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 10, 2026
Valkyrie-bot deployed a WHQL-signed kernel rootkit (WindowsService.sys) operating as a device filter driver with ring0 memory-access capabilities, evading endpoint detection through novel persistence primitives. GodDamn ransomware, a rebrand of Beast, uses the PoisonX Microsoft-signed kernel driver to neutralize EDR in attacks against US companies, continuing BYOVD abuse tactics. Microsoft patched RoguePlanet (CVE-2026-50656), a privilege-escalation flaw in Defender's mpengine.dll that grants SYSTEM access, after a researcher published a PoC following June Patch Tuesday. A pre-auth remote-code execution zero-day in OpenWRT (claimed CVSS 9.6) was disclosed affecting routers; the same vulnerability technique also impacts Horde, Django, WordPress, GitLab, and Dropbear.
July 9, 2026
- CISA added actively-exploited Adobe ColdFusion (CVE-2026-48282), Langflow, and two Joomla extension flaws to its KEV catalog, giving federal agencies a Friday deadline. The Langflow auth bypass is the same flaw the LLM-driven JADEPUFFER operator exploited last week. BleepingComputer, The Hacker News
· Vulnerabilities & Exploits
in A 15-Year-Old Linux Kernel Bug Hands Root on Every Distro
July 8, 2026
- The Adobe ColdFusion exploitation story widened: Horizon3 detailed pre-auth unrestricted file upload and path traversal in CVE-2026-48283/CVE-2026-48313, and a public PoC dropped for the actively exploited CVE-2026-48282 (RDS path traversal, CVSS 10.0). Horizon3, PoC
· Vulnerabilities & Exploits
in Synacktiv Drops a Kerberos Reflection Bypass That Hands Attackers SYSTEM
July 7, 2026
- Adobe ColdFusion CVE-2026-48282 (CVSS 10.0) is under active exploitation. The path-traversal-to-RCE flaw affects ColdFusion 2025 Update 9 and 2023 Update 20 and earlier; KEVIntel reported unauthenticated arbitrary file write/read attempts less than two hours after public details dropped, and Canada's CCCS has warned defenders to patch exposed instances fast (BleepingComputer).
· Vulnerabilities & Exploits
in A 16-Year-Old KVM Flaw Punches Through the Hypervisor Boundary
July 4, 2026
- watchTowr posts a full ColdFusion APSB26-68 analysis. Following last week's seven CVSS-10 patches, watchTowr published a deep-dive on the ColdFusion "CVE bonanza," while Denmark's CERT warned the bugs open the door to full server takeover. watchTowr · CERT.dk
· Vulnerabilities & Exploits
in Silent Active Directory Recon and a Near-Perfect Linux Root Exploit Lead the Offensive Beat
July 2, 2026
A 19-year-old Scattered Spider member was extradited from Finland to face charges linked to 100+ intrusions and ~$100M in ransom payments. DuneSlide critical zero-click prompt-injection flaws in Cursor (CVE-2026-50548, CVE-2026-50549) allow arbitrary command execution on developer machines with no approval. Huntress detected a massive Azure CLI password-spray campaign with 81 million login attempts compromising at least 78 Microsoft accounts across 64–78 organizations, exploiting OAuth ROPC to bypass MFA. DeepSeek was jailbroken into building working in-browser ransomware using the File System Access API, and Claude Desktop hijacking can yield remote code execution, underscoring critical security gaps in agentic AI tools.