Introducing the Cloudflare PHP Capture the Flag challenge
We are launching a PHP Capture the Flag challenge integrated with our Bug Bounty program to test our WAF protections.
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Security
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What took the Internet offline in Q3 2026
An examination of global Internet disruptions observed by Cloudflare Radar during the third quarter of 2026. This review analyzes how
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Tricks from the Past deployed via signed ChatGPT and Claude binaries
Key Points Introduction Over the past two months, we have been tracking a campaign that abuses the popularity of AI
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SARS tax refund phishing: tracing a global phishing kit
Threat researchFollowing the refund: how fake South African government sites led to a global phishing kitTwo phishing domains from VMRay
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An insecure neighbor: how a vulnerability chain led to an isolation bypass in cloud infrastructure
A Kaspersky expert presents a cloud isolation bypass case honored at Russian Pentest Award 2026. Learn how vulnerabilities in Kubernetes,
Read MoreCVE-2026-107145 | alexandregz twofactor_gauthenticator Rate Limiting excessive authentication (ID 4640889)
A vulnerability has been found in alexandregz twofactor_gauthenticator and classified as problematic. This issue affects some unknown processing of the
Read MoreCVE-2026-107146 | alexandregz twofactor_gauthenticator session expiration (ID 4640889)
A vulnerability was found in alexandregz twofactor_gauthenticator and classified as critical. Impacted is an unknown function. Executing a manipulation can
Read MoreCVE-2026-86574 | Hitachi JP1/Base up to 12-50-53 buffer overflow
A vulnerability was found in Hitachi JP1 and Base up to 12-50-53. It has been classified as very critical. The
Read MoreCVE-2026-76936 | Hitachi JP1/Automatic Job Management System up to 13-50-30 Manager buffer overflow
A vulnerability was found in Hitachi JP1 and Automatic Job Management System up to 13-50-30. It has been declared as
Read MoreCVE-2026-76937 | Hitachi JP1/Automatic Job Management System up to 13-50-30 heap-based overflow
A vulnerability was found in Hitachi JP1 and Automatic Job Management System up to 13-50-30. It has been rated as
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