Multiple ransomware groups, including Qilin and INC, are exploiting CVE-2026-0257, an authentication bypass in Palo Alto Networks PAN-OS GlobalProtect portals and gateways. Unit 42 has been investigating intrusions since early June across many sectors, including finance, healthcare and manufacturing. The flaw was patched on May 13 and ini…
Palo Alto Networks Unit 42 reports active exploitation of CVE-2026-0257, an authentication bypass in the portal and gateway components of PAN-OS GlobalProtect. The flaw lets unauthorized attackers circumvent security controls and open VPN connections. The October 19 update says Unit 42 continues to see exploitation attempts by ransomware …
GreyNoise reports that on 31 August 2026 a likely Russian-speaking malicious cyber actor used 45.142.193.132 and AI to develop, test and deploy exploits for PaperCut NG/MF (CVE-2026-81578 and CVE-2026-82078). Using hundreds of AI agents built on OpenAI's Codex harness, a DeepSeek model and public offensive security tools, the actor compro…
CISA warns that threat actors are exploiting CVE-2026-104935, a zero-day authentication bypass in Ivanti Connect Secure that allows remote, unauthenticated execution of arbitrary commands. The activity is being used for credential theft and data exfiltration. CISA added the CVE to its Known Exploited Vulnerabilities (KEV) Catalog on Oct. …
Hacktron analyzes wp2shell, an unauthenticated RCE chain in WordPress core found by Searchlight Cyber. It combines CVE-2026-63030, a route handler confusion in the REST API batch endpoint, with CVE-2026-60137, an SQL injection in WPQuery. Affected versions are WordPress 6.9.0-6.9.4, 7.0.0-7.0.1 and the 7.1 beta, fixed in 6.9.5, 7.0.2 and …
Ivanti released security updates for an actively exploited Connect Secure zero-day, CVE-2026-104935, and six other vulnerabilities in Neurons Patch for Intune and Xtraction. CVE-2026-104935 is a spoofing-based authentication bypass that lets remote, unauthenticated attackers execute arbitrary commands, and Ivanti confirmed limited exploit…
ConnectWise disclosed on October 16 that on October 15 it detected unauthorized access to application identities in its Cloud Backup (formerly SkyKick) environment. It suspended Cloud Backup, plus the integrated SaaS Security and Cloud Management services, as a precaution. As of 16:00 UTC on October 18 the services were still down, so end…
Attackers began exploiting Plex2Shell, a chain of four Plex Media Server vulnerabilities, within about a day of researcher Zach Main publishing technical details and PoC code on October 16, 2026. A researcher running an internet-facing honeypot observed the first in-the-wild exploitation on October 17. The attackers deployed an XMRig-base…
Google warns that Armory Castle, a suspected PRC state-sponsored espionage actor, exploited the critical BeyondTrust Remote Support vulnerability CVE-2026-102764 (CVSS 9.3) in August 2026, well before BeyondTrust disclosed it on October 15. The actor escalated privileges to root and established persistent access on compromised appliances.…
Rank Math disclosed that copies of Rank Math PRO, the paid WordPress SEO plugin, downloaded from rankmath.com or delivered as updates between 20:02 UTC on October 15 and 07:12 UTC on October 16, 2026 contained malware. Any site that installed and activated an affected copy should be treated as compromised. The malware can recreate its hid…
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…
F5 Labs, using Efflux sensor telemetry, analyzed December 2025 exploitation of React2Shell (CVE-2025-55182), a CVSS 10.0 unsafe deserialization RCE in React Server Components. It was disclosed on 3 December 2025 and rose to second place among the most exploited CVEs, behind only CVE-2017-9841. Within days of disclosure, actors moved from …
CVE-2026-9082 is a critical (CVSS 9.8) pre-authentication SQL injection in the JSON:API module of Drupal Core. It was published on May 20, 2026 and added to the CISA KEV catalog the same month, with a remediation deadline of May 27. F5 sensors recorded 576 exploitation attempts from 9 source IPs between May 20 and May 31, 2026. The earlie…
Mandiant and GTIG attribute exploitation of the critical BeyondTrust Remote Support zero-day CVE-2026-102764 to Armory Castle (formerly tracked as UNC5221), a likely Chinese government-backed espionage group. BeyondTrust dates the first known exploitation to Aug. 29 and says it detected and contained the activity Sept. 28. Only a small nu…
Attackers used UpdraftCentral connection keys exposed in an October 17-18, 2026 breach of the TeamUpdraft website to send validly signed remote-management commands to WordPress sites running UpdraftPlus. The commands installed malicious plugins that give unauthorized access, and Wordfence also saw attempts to delete existing plugins. Team…
Zeabur, a developer hosting and deployment platform, disclosed that on October 14-15, 2026 an attacker used leaked internal credentials stored in plaintext to compromise its shared clusters, some Dedicated Servers and internal systems, and ultimately read the production database. The breach affected shared clusters in nine regions, 321,81…
Huntress reports that a stolen vendor credential for ConnectWise Cloud Backup (formerly SkyKick) was used on October 15, 2026 to obtain Microsoft Graph tokens in customer Microsoft 365 tenants from the hosting IP 144.172.64.128. As of 19:00 UTC on October 16, Huntress had confirmed unauthorized sign-ins in 162 tenants. Later updates found…
On September 23, 2026, an attacker published malicious versions of @memtensor/memos-cloud-openclaw-plugin (npm, versions 0.1.21, 0.1.23 and 0.1.25 per the article) and the MemoryOS Python library (PyPI, 2.0.34). Both carry the same Go implant, sckit, which harvests credentials from the home directory, exfiltrates them to servers under sky…
The npm account dirtyblanket published nine typosquatted packages on September 29, 2026 in 33 minutes, eight copying Express and one copying React. On Linux, a preinstall hook fetches node.js through the Internet Archive Wayback Machine, which pulls the worm linux.sh from Codeberg and runs it with bash. The worm installs CHAOS, an open-so…
This SentinelOne weekly roundup (Week 41, 2026) covers law enforcement actions, a phishing campaign and an actively exploited vulnerability. The most urgent item is CVE-2026-21589, a critical (CVSS 9.3) unauthenticated arbitrary file access flaw in Atlassian Data Center products. Exploitation attempts began about two hours after a public …