Threat Feed
Daily intelligence on vulnerabilities, threat actors and geopolitical context — distilled from primary sources.
satellite_altDaily BriefCyber Threat Daily Brief — September 4, 2026
Today's briefing: 14 critical and 22 high-severity threats. A total of 47 detailed analyses covering vulnerabilities, threat actors, and geopolitical context.
Latest Reports
27 / 1172 results
highbug_reportVulnerabilityMicrosoft 365 Copilot SearchLeak allows data exfiltration via trusted link
Microsoft 365 Copilot Enterprise Search. All organizations using M365 Copilot with Enterprise Search enabled are potentially affected. Specific version details not disclosed.
highperson_alertThreat ActorChina-Linked Espionage Group Deploys InfiniteRed via REDCap Servers
This activity is attributed to a China-linked espionage group targeting healthcare and medical research sectors. The actor's motivation appears to be intelligence collection focused on sensitive medical research data, consistent with strategic intere…
criticalbug_reportVulnerabilitySearchLeak in Microsoft 365 Copilot enables data theft via crafted URLs
Microsoft 365 Copilot Enterprise. All organizations using Copilot with access to mailbox, OneDrive, or SharePoint data are potentially affected. Specific vulnerable versions not disclosed.
highperson_alertThreat ActorShinyHunters Breaches 137K+ School Staff via Salesforce Attack
ShinyHunters is a financially motivated cybercrime actor specializing in large-scale data theft and extortion operations. The group has established a reputation for targeting cloud-based platforms and third-party service providers to compromise downs…
highbug_reportVulnerabilityResponsive FileManager RCE via unrestricted file upload (CVE-2026-5482)
Responsive FileManager (versions not specified). The vulnerability affects file upload mechanisms allowing unrestricted file uploads leading to remote code execution.
highbug_reportVulnerabilityQuick.CMS deserialization flaw enables potential remote code execution
Quick.CMS software (specific versions not disclosed). Affects systems where untrusted data is deserialized without proper validation.
criticalbug_reportVulnerabilitySupply chain attack hits PushEngage, OptinMonster, TrustPulse plugins
WordPress sites using PushEngage, OptinMonster, and TrustPulse plugins. All versions loading compromised JavaScript files from vendor infrastructure are affected.
highbug_reportVulnerabilityMultiple high-severity vulnerabilities in GitLab CE and EE require patching
GitLab Community Edition (CE) and Enterprise Edition (EE). Specific affected versions not provided in advisory; typically affects versions prior to latest security release.
highbug_reportVulnerabilityPalo Alto PAN-OS GlobalProtect auth bypass under active exploitation
Palo Alto Networks PAN-OS GlobalProtect VPN portal and gateway components. Specific affected versions not disclosed in provided data. CVE-2026-0257, CVSS 7.8 (High).
highperson_alertThreat ActorFBI disrupts Outsider Enterprise Chinese phishing-as-a-service platform
Outsider Enterprise is a Chinese phishing-as-a-service (PhaaS) operation disrupted by the FBI in coordination with Google and Black Lotus Labs. The actor operated thousands of phishing websites designed to harvest credit card data and passwords from…
highpublicGeopoliticalFormer Iowa school IT employee sentenced for insider cyberattack
This incident represents a domestic insider threat case within the United States education sector, rather than a state-sponsored or geopolitically motivated cyberattack. The prosecution and sentencing reflect U.S.
criticalperson_alertThreat ActorChinese state-sponsored hackers maintain 10-year persistent access
Chinese state-sponsored hackers, likely an advanced persistent threat (APT) group operating on behalf of the People's Republic of China. The actor demonstrated exceptional operational security and patience, maintaining covert access to a target organ…
criticalbug_reportVulnerabilitySplunk Enterprise RCE flaw allows unauthenticated remote code execution
Splunk Enterprise versions below 10.2.4 and 10.0.7. The vulnerability enables unauthenticated attackers to perform arbitrary file operations and achieve remote code execution. CVSS score 9.8 (Critical).
highpublicGeopoliticalUS orders Anthropic to restrict foreign access to advanced AI models
The directive appears to represent an expansion of US export control philosophy into the AI domain, treating advanced language models as dual-use technologies with national security implications.
highpublicGeopoliticalU.S. orders Anthropic to suspend foreign access to advanced AI models
The directive represents an escalation in U.S. efforts to control the diffusion of advanced artificial intelligence capabilities, treating frontier AI models as dual-use technologies with strategic implications.
criticalbug_reportVulnerabilityArch User Repository supply chain attack: 400+ packages backdoored
Arch Linux users who installed or updated packages from the Arch User Repository (AUR) during the compromise window. Over 400 AUR packages contained malicious build scripts deploying a Rust-based infostealer.
highperson_alertThreat ActorChinese Cybercrime Network Weaponizes Google Gemini AI for SMS Phishing
A Chinese cybercrime network operating a phishing-as-a-service (PhaaS) platform called Outsider. The group weaponizes Google's Gemini AI to craft and conduct SMS-based phishing attacks (smishing) targeting American victims.
highbug_reportVulnerability10-year-old phpBB auth bypass enables attacker login as any user
phpBB forum software, versions spanning approximately 10 years (specific affected versions not disclosed). All installations running unpatched versions are vulnerable.
criticalperson_alertThreat ActorVelvet Ant: China-linked APT backdoors Linux auth for decade-long access
Velvet Ant (G1047) is a China-linked advanced persistent threat actor characterized by exceptional operational security and long-term persistence capabilities.
highperson_alertThreat ActorConti Operator Pleads Guilty After Extradition to United States
Conti is a prolific ransomware-as-a-service (RaaS) operation that emerged in 2020 and became one of the most active and financially successful cybercrime groups before its infrastructure was leaked and operations fragmented in 2022.
criticalbug_reportVulnerability400+ Arch User Repository packages compromised with rootkit and infostealer
Arch Linux users who installed or updated packages from the Arch User Repository (AUR). Over 400 AUR packages confirmed compromised. Specific package names and versions not yet disclosed.
criticalbug_reportVulnerabilityOracle PeopleSoft RCE actively exploited, immediate patching required
Oracle PeopleSoft (specific versions not disclosed in alert). Remote code execution vulnerability affecting internet-facing PeopleSoft instances.
highbug_reportVulnerabilityAI coding agents vulnerable to code execution via crafted Sentry errors
AI coding agents (e.g., GitHub Copilot, Cursor, Aider) integrated with Sentry error-tracking platform. Affects development environments where AI agents have code execution permissions and process Sentry error reports.
highperson_alertThreat ActorUNC1151/Ghostwriter Targets Polish Gmail Accounts in Phishing Campaign
UNC1151, also known as Ghostwriter, is a threat actor group attributed by FireEye/Mandiant that has conducted sustained information operations and cyber espionage activities.
highpublicGeopoliticalNovo Nordisk discloses clinical trial data breach in Denmark
The breach at Novo Nordisk, a Danish pharmaceutical giant controlling approximately 50% of the global insulin market, highlights the strategic vulnerability of critical healthcare infrastructure.
criticalbug_reportVulnerabilityLangGraph AI framework patched for critical RCE via SQL injection chain
LangGraph (LangChain's open-source AI agent framework). Specific vulnerable versions not disclosed; patches available. Affects deployments using LangGraph for AI agent orchestration.
highperson_alertThreat ActorINTERPOL arrests Guedz, admin of Sniper Dz phishing-as-a-service platform
Guedz is identified as the primary administrator of Sniper Dz, a phishing-as-a-service (PhaaS) platform that operated for approximately a decade across the Middle East and North Africa (MENA) region.