The Hack Sheet #003
Wednesday, October 28, 2026 · 8 stories
Security CISA confirms active exploitation of Node2Shell Brotli flaw
CVE-2026-111497, the Brotli decompression bug behind yesterday's emergency patches, is now on CISA's Known Exploited Vulnerabilities list. Wiz says 91% of cloud environments have vulnerable resources, so patch Node.js, Python and .NET runtimes now.
source: bleepingcomputer.com
Security China-linked hackers chain PHP2Shell with a kernel bug to root PAN-OS firewalls
Attackers pair CVE-2026-109618/109619 with the Fragnesia kernel flaw (CVE-2026-46300) for root on Palo Alto firewalls; researchers found about 19,000 exposed devices and root webshells on 24. Patch and pull management interfaces off the internet.
source: securityweek.com
Security Magento PolyShell upload flaw lands on CISA's KEV list after 953 stores infected
Sansec counts 953 compromised Adobe Commerce/Magento stores via CVE-2026-48356. Store owners should patch and check for planted skimmers and unexpected uploaded files.
source: securityaffairs.com
IT Microsoft and Apple distrust compromised eMudhra CA certificates
Major OS vendors are pulling trust for the affected eMudhra certificates, but Linux distro, Homebrew and Python certifi trust bundles may lag. Update CA bundles on servers and build images.
source: isc.sans.edu
IT Microsoft Authenticator for Android leaked auth tokens to other apps
CVE-2026-80097 let a malicious app on the same phone obtain Authenticator's tokens. It's fixed in version 6.2606.4246; make sure managed Android fleets are updated.
source: enclave.ai
Crypto Predict.fun users lose $398K to owner-key drains
About 166.8 ETH went to Tornado Cash after owner keys were used to drain user funds. The team blames a hacked API docs site and promises refunds.
source: bitquery.io
Crypto Bitcoin DEX On Nexus loses 8.5 BTC through a legacy V1 signer bug
The former DotSwap lost about $685K via a deprecated signature path that was still live. A reminder to fully shut down old infrastructure, not just stop advertising it.
source: kucoin.com
Gaming Warhorse Studios hit by a cyberattack
The Kingdom Come: Deliverance studio confirmed a cybersecurity incident but hasn't said what was affected. Watch for phishing that uses the news as a lure.
source: gamedeveloper.com
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