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Atomic macOS (AMOS) Stealer Activity

Unit 42 details an August 2026 AMOS macOS stealer infection delivered via fake 'macOS toolkit' pages and Terminal paste commands, exfiltrating credentials to C2.

Unit 42 analyzed an AMOS (Atomic macOS Stealer) infection from August 5, 2026, initiated via a page at getmacouscloud[.]com instructing users to paste a command into Terminal. The command fetched a Zsh script from ferncore13[.]com that delivered a Mach-O installer to /tmp/helper and supporting files under /Library/Application Support/.com.apple.accountsd/ and .com.apple.metadata.mds/. AMOS collected browser data, credentials, cryptocurrency wallets (Binance, TonKeeper), Telegram data, and FileGrabber content such as AWS and gcloud files, uploading it via HTTP POST to C2 server 161.35.146[.]120. AMOS has been advertised on Telegram since April 2024 and distributed via ClickFix campaigns, malicious ads, and cracked-software sites.

Palo Alto Unit 42 · 22h agoMalware in the wild

macOS 27.2 beta (26B5086k)

Apple released macOS 27.2 beta build 26B5086k to developers for testing.

Apple has published macOS 27.2 beta build 26B5086k on its developer release portal with downloads and release notes. The notice contains no security advisories or CVE information.

Apple software releases · 15h agoAdvisory

Apple security advisory (AV26-930)

CCCS relays Apple's September 14, 2026 security updates fixing vulnerabilities across iOS 27, macOS Tahoe 26.7, Sequoia 15.8, Safari, and other products.

The Canadian Centre for Cyber Security (AV26-930) notes that as of September 14, 2026, Apple has addressed vulnerabilities in iOS and iPadOS prior to 27, macOS Golden Gate prior to 27, macOS Tahoe prior to 26.7, macOS Sequoia prior to 15.8, plus tvOS, watchOS, visionOS 27, Safari, and Xcode prior to 27. The bulletin provides no CVE identifiers or exploitation details. Users and administrators are encouraged to review Apple's security releases and apply the updates.

Canadian Centre for Cyber Security · 12h agoAdvisory

Docker Sandboxes Vulnerabilities Let Malicious Guests Escape Workspace and Access Host Files

Docker fixed two symlink-race flaws in Docker Sandboxes, CVE-2026-77179 and CVE-2026-79994, letting malicious guests escape the workspace and read host files; fixed in 0.42.0.

Docker patched CVE-2026-77179 (Critical) and CVE-2026-79994 (High) in Docker Sandboxes 0.42.0, released September 7. Both are time-of-check-to-time-of-use symlink races: CVE-2026-77179 in the macOS virtio-fs host server (versions 0.28.0 to before 0.42.0) can allow a malicious guest to read or modify arbitrary host files and potentially achieve code execution, while CVE-2026-79994 in the guest-to-host Unix socket relay (0.37.0 to before 0.42.0) can redirect host connections to arbitrary AF_UNIX sockets. Docker recommends upgrading and, as interim mitigation, using clone mode and avoiding read-write host mounts.

Parallels Desktop flaw hands any local user root on a Mac (CVE-2026-90894)

CVE-2026-90894 in Parallels Desktop for Mac lets any local user gain root via argument injection; patched in v27.0.0, PoC withheld.

JFrog researchers disclosed CVE-2026-90894, an argument injection flaw in Parallels Desktop for Mac v26.4.0 on Apple silicon that lets any local user gain root on the host. The chain combines a world-writable Unix socket for prl_disp_service (which runs as root), weak peer-credential authentication, and argument injection via --use-compress-program in the appliance extraction tar path. Alludo fixed the flaw in Parallels Desktop v27.0.0 in early September 2026; JFrog published technical details but withheld its proof-of-concept script.

Help Net Securityupdated · 19h agofirst · 19h agoVulnerability 4 sourcesCVE-2026-90894

Unauthenticated RCE Flaws Could Expose 200,000+ WordPress Sites to Takeover

Two unauthenticated CVSS 9.8 code-injection and PHP object injection flaws in The Events Calendar plugin expose 200,000+ WordPress sites to RCE and takeover.

Defiant identified two critical vulnerabilities in The Events Calendar WordPress plugin, which has over 600,000 active installations. CVE-2026-78159, unauthenticated code injection during single-event HTML processing, was patched in version 6.17.3.1 on August 25; CVE-2026-78006, unauthenticated PHP object injection via event comments, was patched in 6.17.4.1 on September 10. Both independent chains lead to remote code execution and full site compromise. Roughly 240,000 sites run versions vulnerable to both flaws, and about 300,000 downloads between September 10 and 14 suggest half of installations may still lack the second fix.

Chrome, Firefox Updates Patch 115 Vulnerabilities

Google and Mozilla patch 115 vulnerabilities across Chrome 153 and Firefox 156, including three critical Chrome bugs; no exploitation reported.

Google's Chrome 153 (153.0.8010.47/.48 for Windows/macOS) fixes 42 flaws, including three critical: CVE-2026-91726, an out-of-bounds read in WebGL, and use-after-free bugs CVE-2026-91721 and CVE-2026-91749 in Internals and Workers. Mozilla's Firefox 156 resolves 73 vulnerabilities, including 29 high-severity use-after-free and privilege escalation issues, with related fixes in Thunderbird and Firefox ESR branches. Neither vendor reports any of the defects being exploited in the wild.

Enterprises Warned of Attacks Exploiting WSO2 Vulnerability

Attackers are actively exploiting CVE-2026-5430 (CVSS 10), a WSO2 JWT authentication bypass, to access enterprise API credentials and sensitive data.

WatchTowr's honeypot network recorded the first exploitation attempt of CVE-2026-5430 on September 13, roughly two months after the CVE record was published in early August. The flaw, patched by WSO2 in April with an advisory in May, carries a maximum CVSS score of 10 and allows JWT authentication bypass via tokens signed with unsupported algorithms, enabling unauthorized access and full account takeover. A forged JWT observed in the wild granted access to API backend endpoints, credentials, and consumer keys and secrets for every registered application. WSO2's API Manager, API Control Plane, Traffic Manager, and Universal Gateway are affected, and the platform serves nearly 1,000 enterprise customers in banking, government, telecom, and logistics.

SecurityWeekupdated · 17h agofirst · 23h agoExploit / PoC in the wild 3 sourcesCVE-2026-54302· 1 read