Policy & Government
India's CERT-In issued guidelines on May 26, 2026 requiring organizations to patch critical internet-exposed vulnerabilities within 12 hours, "where feasible." The cited reason is explicit: AI-driven exploitation has compressed the patch window past what conventional SLAs can survive.
Vulnerabilities
Microsoft patched CVE-2026-45659, a CVSS 8.8 deserialization RCE in SharePoint Server. The 'authenticated' precondition is barely a precondition — any account with Site Member, the lowest SharePoint role, can trigger it. Patch this week.
Vulnerabilities
Attackers are exploiting CVE-2026-26980, a CVSS 9.4 SQL-injection flaw in Ghost CMS, to hijack more than 700 websites — Harvard, Oxford, and DuckDuckGo among them — and serve visitors a fake-CAPTCHA ClickFix lure. The flaw was patched three months ago.
Supply Chain Attack
GitHub has made npm staged publishing generally available. A direct publish no longer ships a package; the tarball waits in a stage queue until a maintainer passes a 2FA challenge to approve it. It is the first ecosystem-level structural answer to the 2026 supply-chain wave.
Vulnerabilities
CVE-2026-48172, a CVSS 10.0 flaw in the LiteSpeed User-End cPanel plugin, lets anyone with a valid cPanel account run code as root. LiteSpeed confirms it is being actively exploited. On shared hosting, one cheap account is now a path to every account on the server.
Vulnerabilities
Ubiquiti has patched three maximum-severity flaws in UniFi OS — the operating system behind its gateways, Dream Machines, and network video recorders. All three are rated CVSS 10.0, and all three are remotely exploitable by an attacker with no privileges.
Vulnerabilities
Trend Micro's own Incident Response team discovered CVE-2026-34926, a directory-traversal zero-day in Apex One, while it was being exploited. CISA added it to the KEV catalog with a June 4 federal deadline. Its modest 6.7 CVSS score conceals an environment-wide blast radius.
Vulnerabilities
Cisco patched CVE-2026-20223, a CVSS 10.0 flaw in Cisco Secure Workload: insufficient authentication on internal REST API endpoints lets an unauthenticated attacker seize Site Admin — full control of the microsegmentation platform built to contain attackers.
Vulnerabilities
Drupal shipped an out-of-band 'Highly Critical' fix for CVE-2026-9082, an unauthenticated SQL injection in Drupal core affecting every PostgreSQL-backed site. Maintainers warned exploits could land within hours — for a core flaw pre-announced on schedule, the patch window is effectively closed.
Vulnerabilities
Qualys disclosed CVE-2026-46333 — 'ssh-keysign-pwn' — a nine-year-old Linux kernel ptrace flaw that gives an unprivileged user root. Its defining feature is credential theft: the exploit captures SSH keys and shadow-file password hashes, so a patched kernel does not end the exposure.
Vulnerabilities
Microsoft patched UnDefend (CVE-2026-41091) and RedSun (CVE-2026-45498), two Defender zero-days exploited in the wild since April. Their purpose is the security tool itself — one escalates through Defender, the other disables it. Barracuda ties the wave to the researcher behind MiniPlasma.
Vulnerabilities
Microsoft released mitigations for YellowKey (CVE-2026-45585), a BitLocker bypass disclosed by the researcher behind MiniPlasma. A USB port and a reboot defeat the encryption on any TPM-only device — and the only fix is a TPM+PIN configuration change, not a patch.