🛡️ InfoSec Blue Team Briefing

Thursday, October 22, 2026

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Security news from the BlueTeamSec community for Thursday the 22nd of October 2026. Nine stories to get through today, starting with active exploitation.

watchTowr have published an FAQ on two critical remote code execution vulnerabilities in PHP, tracked as CVE-2026-109618 and CVE-2026-109619. Both flaws affect every PHP version from 5.x onwards and are already being exploited in the wild — watchTowr's honeypots started seeing traffic on the 21st. Patches are expected shortly in the latest point releases, so one for anyone running PHP servers.

Broadcom have written up a campaign by the Russian military intelligence group Swallowtail, also known as APT28 or Fancy Bear. They've been targeting defence organisations in two NATO countries — including a naval shipbuilder and a military aircraft engine manufacturer. The attack used macro-enabled documents to deploy a backdoor called Hookedge, which runs a hidden Edge browser instance for command and control via webhook.site, alongside SSH tunneling and credential theft.

The US Department of Homeland Security has issued a formal order excluding information technology products and services developed by Hangzhou DeepSeek Artificial Intelligence and its affiliates from all Federal Civilian Executive Branch agencies. The order prohibits future procurement and mandates removal of existing DeepSeek products, reflecting ongoing national security concerns about foreign-developed AI software. This follows related threat intelligence we covered earlier this week around AI-enabled attacks in Asia.

Google have upgraded Chrome's Enhanced Protection mode with AI-powered defences against evolving web scams. The update introduces a two-tier warning system and a server-side Gemini model for content analysis to spot deceptive patterns. It also includes clipboard monitoring to prevent ClickFix attacks, where users are tricked into executing malicious commands. Worth a look if you're advising users on browser hardening.

Now a run of incident disclosures. Team Updraft disclosed unauthorised access to their website on the 17th and 18th of October, resulting in potential exposure of their customer database and compromise of connection keys for UpdraftCentral. They've revoked credentials, forced account sign-outs, and released mandatory security updates. We've covered a few related ConnectWise incidents recently, so this adds to a theme around backup and management tooling.

Zeabur disclosed a breach in October where attackers used leaked internal credentials from a private repository to access shared cluster infrastructure and GCP dedicated servers. Environment variables for over three hundred thousand accounts were exposed, along with eight hundred and sixty-five database containers and SSH key injection on fifty GCP servers. Full credential rotation and server rebuilds required for affected users.

Dennis Jackson has written up a cryptographic failure at eMudhra, a Certificate Authority. In April 2025, they incorrectly generated private keys for eight intermediate CA certificates, making them mathematically recoverable from the public certificates. That allows attackers to issue fraudulent certificates for any domain and conduct undetected man-in-the-middle attacks against anyone who trusts those intermediates — which is a fairly sobering failure mode.

CERT-FR have published lessons learned from nearly two hundred web application data breaches analysed in 2025. The headline finding is that most exploited low-complexity methods rather than sophisticated zero-days. The report offers ten practical security principles based on actual incident response missions, so useful background if you're refining application security posture or incident readiness.

And finally, the UK Information Commissioner's Office reprimanded Ogi Networks and Data Cymru after a November 2024 ransomware attack exploited a dormant test account called 'Test2', created in 2012 with the password 'Password1'. The breach exposed forty-two gigabytes of data affecting three thousand three hundred individuals, mostly children. The failures here were basic — no password policy, no account audits, and improper sub-processor contracts under UK GDPR. The ICO's statement rather dryly notes that 'Password1 is not an appropriate password', which feels generous.

That's everything for today from BlueTeamSec. The articles are the work of their original authors — the analysis here was automated. Back tomorrow.

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