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Cloudflare warned that attackers are already attempting to exploit two critical PHP vulnerabilities ahead of an official fix. The PHP Foundation rated both flaws CVSS v4 9.2 and scheduled a security release for 21 October 2026 at 14:00 UTC. Cloudflare CTO Dane Knecht said emergency WAF rules covering known exploit vectors are live for all…
Acronis Threat Research Unit found that the Gentlemen ransomware operation is using the BYOVD (bring your own vulnerable driver) technique with legitimate Lenovo and Safetica kernel drivers to terminate endpoint security software before encrypting files. Two custom dropper samples were recovered from a recent incident. They install the dr…
Google released Chrome 156 to the stable channel for Windows, macOS and Linux on October 20, 2026, fixing 353 vulnerabilities: 6 critical, 68 high, 190 medium and 89 low. The critical flaws include five memory corruption bugs and one use-after-free in Accessibility. The release also credits AI-assisted research, including Anthropic resear…
BRONZE SANDCASTLE is a suspected China-based intrusion set. Between August 2025 and August 2026 it compromised victims in the Philippines, Taiwan, Afghanistan, Namibia and likely South Korea. Its operators sideload malicious DLLs into legitimate applications, then run encrypted payloads in memory. After deployment they enumerate accounts …
Apache disclosed eight vulnerabilities in Apache Tomcat, three rated Important and five rated Low. They cover authentication bypass, cross-user data exposure, insecure socket access and cryptographic configuration failures. Fixes are in Tomcat 11.0.27, 10.1.61 and 9.0.123, depending on the branch. Exposure depends on the component and con…
Oracle published its October 2026 Critical Patch Update on October 20, delivering 1,295 security patches across Oracle software and third-party components. Several fixes address critical flaws that can be exploited remotely without authentication, affecting databases, middleware, business applications, Java, MySQL and virtualization platf…
Horizon3.ai has released a public proof-of-concept exploit for CVE-2026-106173, a critical flaw in Fortinet FortiSIEM that lets unauthenticated attackers turn an arbitrary file write into remote code execution. Researcher Zach Hanley published the technical analysis on October 20, following Fortinet's advisory FG-IR-26-180 of October 13. …
Swallowtail (also tracked as APT28, Fancy Bear and Forest Blizzard), a Russian espionage group linked by the U.S. government to the GRU, targeted organizations in two NATO member states. Victims included a law enforcement agency, a naval shipbuilder and a manufacturer of military aircraft engines. Symantec's Threat Hunter Team reported th…
Researchers at Claroc disclosed GhostShares, a privacy flaw in Meta's Muse AI assistant that let outsiders discover shared conversations through passive DNS records. Muse built share URLs under cf.metaaiusercontent.com with the conversation title and a random identifier embedded in the hostname, so any hostname recorded by a passive DNS p…
A Flare analysis argues that Scattered Spider, LAPSUS$ and ShinyHunters are distinct intrusion clusters within The Com, a decentralized, mostly English-speaking cybercriminal subculture, and not interchangeable names for one group. It describes SP1D3R HUNTERS (also called Scattered LAPSUS$ Hunters, SLH) as a shared brand and coordination …
Attackers compromised 333 Tor exit nodes, roughly 10% of the network's ~3,000 exit relays, to intercept SSH connections, harvest passwords and attempt to install the Ebury Linux backdoor. A researcher's account published on October 20, 2026 says the attackers accessed the underlying servers in August and began coordinated interception on …
Rust 1.100, scheduled for November 12, 2026, will stabilize Cargo dependency cooldowns. Developers can reject newly published crate versions until they reach a configurable minimum age. The aim is to give researchers, maintainers and registries time to detect malicious releases before automated updates spread them across development envir…
A joint advisory published on October 20, 2026 by CISA, the FBI, the United States Secret Service and German and UK law enforcement says SafePay ransomware actors have compromised at least 600 organizations across critical infrastructure sectors in North America, South America, Europe and Australia since August 2024. The findings cover in…
Microsoft Security Response Center (MSRC) announced on October 20, 2026 that it is replacing the multiple report quality levels in its bug bounty programs with two assessments: "Complete" and "Not Complete". The rules apply to reports submitted on or after October 20, 2026, 8 AM Pacific Time. Earlier submissions remain under the previous …
SOCRadar's Threat Research Unit (STRU) found open directories on 45.227.254.43 in late September 2026. They led to six more adversary servers tied to INC Ransom and The Gentlemen affiliates. The servers held 8,257 AI messages across 133 sessions, source code, stolen credentials, victim workspaces and 46 victim-specific INC encryptor build…
Researchers found that the private keys of eight eMudhra intermediate CA certificates could be recovered from public certificate data. Each P-384 key was an integer below 256, so near-instant recovery by simple enumeration or a discrete logarithm algorithm was possible. The incident was disclosed on October 20, 2026, and Mozilla, Google, …
The U.S. Department of Homeland Security (DHS) has issued a Federal Acquisition Supply Chain Security Act (FASCSA) order directing federal civilian agencies to remove DeepSeek AI products from their IT systems and to stop acquiring them. The notice is due to be published in the Federal Register on October 20, 2026 and names Hangzhou DeepS…
OpenAI announced an expanded ChatGPT integration for Google Chrome with two workflows. "Chat" reads content from open tabs to inform answers. "Work" controls tabs to send messages, fill out forms, download files, and organize or group tabs. The article presents this as a change that combines browser visibility with delegated actions, rais…
Researchers describe WP2Shell, a chain of two WordPress core flaws, CVE-2026-63030 and CVE-2026-60137, that lets unauthenticated attackers progress from public REST API endpoints to remote code execution. It affects default installations with no third-party plugin required. Public exploit code exists and exploitation attempts have been ob…
Rank Math reported a security incident in which its premium Rank Math PRO WordPress plugin, version 3.0.123, was distributed with malware. Sites are at risk if administrators activated the compromised version. The affected download window ran from October 15, 2023 20:02 UTC to October 16, 2023 07:12 UTC (dates as stated in the article), a…
