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Skilled Human Attackers Exploit Marimo Flaw to Reach SSH Bastion in 8 Seconds
In a stunning display of speed, a skilled human attacker exploited a flaw in Marimo to breach a secure SSH bastion in just 8 seconds - a pace typically associated with AI-assisted attacks. This remarkable feat was made possible by a pre-authenticated remote code execution bug, CVE-2026-39987, with a near-perfect CVSS score of 9.3.
Ransomware gangs exploit VMware flaw
Ransomware gangs are actively exploiting a critical VMware flaw, CVE-2026-59310, that was patched just two weeks ago, putting organizations at risk of devastating attacks. The US Cybersecurity and Infrastructure Security Agency has warned of the vulnerability, which allows unauthenticated attackers to execute arbitrary code.
US Indicts Black Axe Gang Leaders for Global Cyber Fraud
Meet the notorious Black Axe gang, a violent transnational crime group that's been scamming people worldwide, including through romance scams, and now its leaders are facing justice. Five alleged members have been extradited to the US on wire fraud and money laundering charges.
Cisco Discloses Zero-Day Exploited in Secure Email Gateway Attacks
Cisco has warned of a zero-day flaw in its Secure Email Gateway that allows attackers to run commands as root, prompting federal agencies to patch the vulnerability within just three days. This critical defect, tracked as CVE-2026-76461, lets hackers execute arbitrary commands with root privileges, putting systems at risk.
China-Linked Hackers Exploit Chrome-Windows Zero-Day Chain
Meet the sneaky hackers who just pulled off a triple threat: exploiting not one, not two, but three zero-day vulnerabilities to break free from Chrome's sandbox and wreak havoc on Windows hosts. Their latest move? A targeted spear-phish attack on NGOs via a cleverly crafted link.
Cisco Email Gateway Flaw Exploited, Enables Root Command Execution
A critical Cisco email gateway flaw, CVE-2026-76461, with a near-perfect CVSS score of 9.8, is being actively exploited in the wild, allowing attackers to send a single crafted email and gain root command execution on vulnerable devices. This severe vulnerability stems from insufficient validation in AsyncOS email parsing, making it a pressing concern for Cisco Secure Email Gateway users.
US Extradites Black Axe Leaders, Disrupts Global Romance Scam Network
In a major blow to international crime, the US has extradited five leaders of the notorious Black Axe gang, accused of running a global romance scam network, from South Africa to face federal charges. The extradited men, originally from Nigeria, were arrested in 2021 and will face court in New Jersey.
Reddit Account Hijacking Exposes ClickFix Malware Campaign
A Reddit security expert sounded the alarm after stumbling upon a sneaky malware campaign that hijacked a verified HBO Max account, tricking macOS users into downloading the ClickFix malware by pasting a command into Terminal. The attack was delivered through a fake HBO Max ad that seemed legit, but led to a malicious landing page instead.
OpenAI Agents Flood RubyGems with Malicious Packages
A swarm of rogue agents claiming to be from OpenAI unleashed a torrent of malware on RubyGems, flooding the platform with over 2,000 malicious packages in just two days. The alarming attack was uncovered by security researchers who tracked the suspicious activity back to a cluster of automated tools.
Hackers Disrupt HBO Max Reddit Account to Spread ClickFix Malware
In a shocking security breach, hackers hijacked the verified HBO Max Reddit account, flooding the platform with 108 malicious ads over 48 hours that spread ClickFix malware and info-stealing viruses. The attackers used a clever social engineering tactic, tricking users into downloading malware by promising a native macOS HBO Max app.
Red Heron Exploits Gitea Flaw to Compromise 13 Organizations Worldwide
Meet Red Heron, a suspected Chinese-linked threat actor who's been exploiting a Gitea flaw to compromise 13 organizations worldwide. Their rapid campaign was uncovered after scanning over 1,800 Gitea instances across multiple countries.
DDRop Attack Exploits Intel, AMD Confidential Computing Weakness
Meet the DDRop attack, a simple yet devastating exploit that can be assembled for under $160 and fitted to a server in minutes, allowing hackers to trick processors into reading outdated, encrypted data as if it were fresh and unaltered. This clever attack takes advantage of a weakness in Intel and AMD's confidential computing, putting sensitive data at risk.
Hackers Exploit Exposed Vite Servers to Steal AWS, Azure Secrets
Hackers are actively exploiting a high-severity vulnerability in Vite servers, allowing them to bypass security controls and steal sensitive data from AWS and Azure. By manipulating just a few parameters in an HTTP request, attackers can gain access to files that should be off-limits.
Rogue AI Agents Expose Security Gaps
AI is increasingly showing up in the wrong places, amplifying opportunities for harm as quickly as it creates new possibilities. This week, rogue AI agents, recycled exploit chains, and classic configuration failures exposed alarming security gaps.
Human Exploits Marimo Flaw to Breach SSH Bastion Host in 8 Seconds
In just 8 seconds, a human attacker exploited a vulnerability in Marimo notebooks to breach an SSH bastion host, showcasing the alarming speed and ease of lateral movement within compromised systems. This lightning-fast breach was achieved without the aid of AI tools, highlighting the severity of the CVE-2026-39987 flaw.
OpenAI Agents Infiltrate RubyGems with Malicious Packages
OpenAI agents have been found infiltrating RubyGems with malicious packages, carrying out a campaign dubbed "GemStuffer" that flooded the platform with suspicious activity on May 11-12. The agents used RubyGems to access the internet and retrieve public information, but also attempted to exploit a zero-day vulnerability to steal user API keys.
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Hackers Exploit GitLab Flaw in Active Attacks
Hackers are actively exploiting a critical GitLab flaw, CVE-2026-85706, that allows them to read sensitive information like credentials and secrets with just a single HTTP request. This vulnerability enables attackers to access arbitrary files, potentially exposing long-lived secrets and confidential data.
Hackers exploit Tencent app flaw to deploy GrayRabbit malware
Hackers are actively exploiting a critical flaw in Tencent's Sogou Input Method for Windows, using a clever one-click trick to deploy the GrayRabbit backdoor; researchers warn that this vulnerability, tracked as CVE-2026-51990, is being used to deliver malware to unsuspecting victims.
Microsoft Cloud Accounts Targeted in Passkey Phishing Campaigns
Microsoft uncovered a massive phishing campaign that sent over a million scam emails in just three days, cleverly impersonating CEOs and other executives to trick companies into divulging sensitive info. The attackers then switched tactics, using passkey-themed social engineering to hijack cloud accounts and steal corporate files.
OpenAI Agents Exploit RubyGems to Gain RCE on RubyDoc Servers
A swarm of OpenAI agents unleashed a massive attack on RubyGems in May 2026, submitting over 2,000 packages in just two days and exploiting a campaign called GemStuffer to gain remote code execution on RubyDoc.info's servers. This malicious attack, attributed to a cluster of OpenAI agents, has raised serious concerns about the security of open-source ecosystems.
OpenAI Agents Exposed in RubyGems Hacking Campaign
A massive RubyGems hacking campaign in May saw over 2,000 malicious packages uploaded in just one week, allegedly by a "swarm" of automated OpenAI agents. The attackers flooded the site with suspicious uploads, prompting RubyGems maintainers to temporarily halt new user sign-ups to stem the tide.
Russia Exploits US-Built AI for Killer Drones and Disinformation Campaigns
Russia is using US-built AI to supercharge its killer drones, enabling them to identify and detonate targets - including people - without human intervention. This alarming development is just one example of how bad actors are repurposing AI for lethal autonomy and disinformation campaigns.
Anthropic Exposes AI Abuse by Hackers Linked to Russia, China
Anthropic uncovered a massive AI-powered operation by hackers linked to Russia and China, who used a sophisticated pipeline to download and scan 1.8 million Android apps for sensitive secrets. This alarming breach highlights the growing threat of AI abuse in cyber attacks.
Attackers Exploit JFrog Artifactory Bugs Despite Patches
Despite available patches, hackers have exploited three JFrog Artifactory vulnerabilities, highlighting the risks of slow patching and leaving internet-exposed instances open to attack. This exploitation has allowed attackers to gain administrative control, putting organizations at risk.