Last updated: August 21, 2026 at 10:03 AM UTC
All 747 Vulnerability 290 Breach 129 Threat 321 Defense 7

Critical F5 NGINX flaws allow unauthenticated code execution and crashes

F5 has issued out-of-band patches for two critical flaws in NGINX, the web server and reverse proxy that runs a large share of the internet. CVE-2026-42530 (a use-after-free in the HTTP/3 module) and CVE-2026-42055 (a heap overflow in the HTTP/2 proxy and gRPC modules), both rated 9.2, let a remote, unauthenticated attacker corrupt memory in an NGINX worker, crashing it for a denial of service and, where address-space randomization is disabled or bypassed, potentially running code. They affect non-default configurations across NGINX Open Source, Plus, Gateway Fabric, and Instance Manager. F5 has not seen exploitation yet, but its products are frequent attacker targets.

Check
Inventory NGINX instances and versions across servers, ingress, and gateways, and check whether HTTP/3 (QUIC) or HTTP/2 proxy and gRPC upstreams are enabled, which is what exposes these flaws.
Affected
NGINX Open Source, NGINX Plus, Gateway Fabric, and Instance Manager in non-default configurations using HTTP/3 (CVE-2026-42530) or HTTP/2 proxying and gRPC (CVE-2026-42055); unauthenticated remote attackers can trigger the flaws.
Fix
Upgrade to the fixed releases (NGINX Open Source 1.31.2, Plus 37.0.2.1 or R36 P6, Gateway Fabric 2.6.4). If you cannot patch now, disable HTTP/3 or the affected proxy settings as F5 advises.

Critical Cisco ISE flaws give attackers root and leak credentials

Cisco has patched serious flaws in Identity Services Engine (ISE), the platform many organizations use to control who and what connects to their network. The most severe is a critical remote-code-execution bug that can give an attacker root-level control of the appliance. A second flaw, CVE-2026-20190, is an unauthenticated information-disclosure issue caused by weak authorization checks, letting a remote attacker pull sensitive data, including hashed credentials, that could fuel follow-on attacks and lateral movement. All versions of ISE and ISE-PIC are affected, though which flaws apply varies by release. Cisco has not reported active exploitation, but ISE sits at the heart of network access control.

Check
Identify Cisco ISE and ISE-PIC deployments and their patch levels, restrict access to the management interface to trusted administrators, and review logs for unexpected requests or signs of credential access.
Affected
All versions of Cisco Identity Services Engine (ISE) and ISE-PIC, with applicable flaws varying by release; the unauthenticated information-disclosure bug is tracked as CVE-2026-20190, alongside a critical root-level code-execution flaw.
Fix
Upgrade to ISE 3.3 Patch 11 or 3.4 Patch 6 now; the 3.5 Patch 4 fix is expected in August. Limit management access to trusted networks until then.

Exposed database leaks 24 billion stolen credentials from infostealer logs

Cybernews researchers found an unprotected Elasticsearch database holding 24 billion records and over 8 terabytes of data, most of it infostealer logs: stolen usernames, passwords, and the services they unlock. The collection also pulls from Telegram channels and older breach dumps. Oddly, it included thousands of records tracking CVE vulnerabilities, breach news articles, and social-media posts about cyber incidents, with content as recent as 2026, suggesting the owner is actively curating and refreshing the stash with new leaks. The researchers could not determine how many records are duplicates, how old the data is, or who owns it.

Check
Check whether your email or domains appear in breach-tracking services, watch for credential-stuffing and account-takeover attempts, and look for infostealer infections on endpoints that could feed such collections.
Affected
Anyone whose credentials were captured by infostealer malware or exposed in past breaches; reused passwords are especially dangerous given the dataset's scale and the attacker's apparent effort to keep it current.
Fix
Reset reused passwords from clean devices, adopt a password manager with unique passwords, enable phishing-resistant MFA everywhere, and run endpoint scans to find and remove infostealer infections at the source.

Nintendo employee survey data stolen via third-party HR tool TinyPulse

Nintendo of America has confirmed that attackers stole internal employee data through TinyPulse, a third-party employee-survey service run by WebMD Health Services, after a threat actor calling itself SHADOWBYT3$ posted the haul and demanded a $2 million ransom. Nintendo says its own systems were not breached, no customer or financial data was touched, and the exposure is limited to internal survey content for a small subset of employees, mostly several years old. The attacker, however, claims to hold more, including bank statements and tax forms. The incident is a textbook third-party vendor breach affecting a major brand.

Check
Review which third-party HR and survey tools hold employee data, what they store, and how access is secured, and watch for phishing aimed at employees referencing surveys or HR programs.
Affected
Nintendo of America employees whose internal survey responses were exposed via the TinyPulse service; the threat actor claims additional data, which Nintendo has not confirmed.
Fix
Inventory and risk-assess third-party tools holding employee data, require strong authentication and least-privilege access for vendor integrations, and minimize the sensitive data shared with such services.

Stolen Klue OAuth tokens let 'Icarus' group raid Salesforce data

A new extortion group called Icarus stole Salesforce CRM data from multiple organizations by abusing Klue, a competitive-intelligence app that integrates with Salesforce. Attackers compromised Klue's backend through a dormant credential, pushed a malicious update that harvested customers' OAuth tokens, and used those tokens to run automated queries against Salesforce's API, exfiltrating contacts, sales communications, and account data over about a day. Salesforce has disabled the Klue Battlecards integration. It is the same OAuth-abuse playbook seen in the Salesloft Drift and Gainsight incidents, exploiting trusted third-party integrations that carry broad, lightly-monitored access. Researchers expect more such attacks through 2026.

Check
Inventory third-party apps connected to your Salesforce and other SaaS, especially Klue, review their OAuth scopes, and hunt API logs for unusual query volume or access from unexpected integrations.
Affected
Organizations using Klue's Salesforce integration, and more broadly any business relying on third-party SaaS integrations whose OAuth tokens grant broad, under-monitored access to CRM and other sensitive data.
Fix
Revoke and rotate OAuth tokens for Klue and other affected integrations, terminate active sessions, restrict integration and API access to known infrastructure, and continuously monitor SaaS integration activity for anomalies.

Microsoft warns of USB worm that hijacks crypto wallets over Tor

Microsoft has detailed a cryptocurrency-stealing campaign, active since February, that spreads through USB drives and hides its command channel inside the Tor network. Infection starts when someone opens a malicious Windows shortcut on a USB stick; the malware then hides real documents and replaces them with lookalike shortcuts, copies itself to other drives, and sets scheduled tasks for persistence. Its clipper component watches the clipboard about twice a second, swapping copied wallet addresses for the attacker's and grabbing seed phrases and private keys, which it sends out over a bundled Tor client. It can also run attacker-supplied code, doubling as a lightweight backdoor.

Check
Watch endpoints for script interpreters spawning unexpected child processes, local Tor proxy use on port 9050, clipboard monitoring, and shortcut files replacing documents on USB drives.
Affected
Windows users, especially cryptocurrency holders, who plug in untrusted USB drives or open shortcut files from them; the malware also spreads worm-like to any removable drive connected afterward.
Fix
Block or tightly control USB removable media, disable autorun, verify wallet addresses after pasting, and use endpoint protection that flags Tor-proxy abuse, clipboard hijacking, and suspicious shortcut-driven script execution.

Hacked WordPress plugin updates push credential-stealing backdoor to paying sites

Attackers compromised the build pipeline of ShapedPlugin, a WordPress plugin maker, and slipped malware into legitimate updates delivered to paying customers through the vendor's own update system. The tainted releases install a fake plugin that impersonates WooCommerce components, steals site credentials, and gives attackers the ability to write files remotely. Three paid plugins are affected: Product Slider Pro for WooCommerce, Real Testimonials Pro, and Smart Post Show Pro. The backdoor was injected into Pro builds on May 21, with the first customer reports on June 10. Versions on WordPress.org stayed clean, pointing to a compromise of the vendor's release infrastructure rather than the plugins themselves.

Check
Check whether your WordPress sites run ShapedPlugin's Product Slider Pro, Real Testimonials Pro, or Smart Post Show Pro, and look for unfamiliar plugins impersonating WooCommerce components and new admin or file-write activity.
Affected
WordPress sites that updated the paid plugins Product Slider Pro (before 3.5.4), Real Testimonials Pro 3.2.5, or Smart Post Show Pro (before 4.0.2) between May 21 and the fix (tracked as CVE-2026-10735).
Fix
Update the affected ShapedPlugin products to fixed versions, remove any rogue WooCommerce-impersonating plugin, rotate all site and admin credentials, and scan the site for web shells and unauthorized file changes.

Critical Joomla JCE editor flaw actively exploited to run PHP code

A critical flaw in the Joomla Content Editor (JCE), one of the most widely used editor extensions for the Joomla CMS, is being actively exploited to take over websites. The bug (CVE-2026-48907, rated a perfect 10) is an access-control failure that lets an unauthenticated attacker create editor profiles and then upload and run arbitrary PHP code, leading to full server compromise. CISA added it to its known-exploited list and ordered federal agencies to patch by June 19. Working exploit code is public and attacks are automated, so even sites with no public registration are at risk. Patching closes the hole but does not remove anything attackers already planted.

Check
Identify Joomla sites using the JCE extension and confirm the version, then audit for unfamiliar editor profiles, suspicious PHP files in upload directories, new admin accounts, and profile-import requests in logs.
Affected
Joomla websites running JCE versions 1.0.0 through 2.9.99.4 (CVE-2026-48907); public-facing sites are being hit by automated attacks regardless of whether public registration is enabled.
Fix
Update JCE to 2.9.99.5 or later now. Since the update does not clean an already-compromised site, also hunt for web shells and rogue accounts, and rotate site, database, and hosting passwords.

FortiBleed leak exposes VPN credentials for nearly 74,000 Fortinet firewalls

A newly surfaced dataset dubbed FortiBleed exposes what appear to be Fortinet and FortiGate VPN credentials tied to 73,932 firewall URLs at organizations around the world. Separately, researchers at SOCRadar report roughly 30,000 compromised Fortinet firewalls exposing networks to attack. Exposed VPN credentials are a direct route into corporate networks, letting attackers log in as legitimate users, bypass perimeter defenses, and stage ransomware or data theft. Fortinet gear is a perennial target, with many of these exposures stemming from past unpatched flaws and credential harvesting. Organizations cannot assume old Fortinet credentials are safe just because devices were later patched.

Check
Check whether your Fortinet or FortiGate VPN appliances appear in the exposed dataset, review VPN authentication logs for logins from unfamiliar locations, and confirm whether previously exposed devices were fully remediated.
Affected
Organizations running internet-facing Fortinet and FortiGate VPNs whose credentials appear among the 73,932 exposed firewall URLs; reused or never-rotated VPN passwords are most at risk.
Fix
Force-reset all Fortinet VPN credentials, enable phishing-resistant MFA on VPN access, restrict management interfaces, and fully patch or replace appliances, treating any potentially exposed device as compromised until verified.

Malicious JetBrains plugins steal developers' AI API keys on entry

Aikido Security uncovered a coordinated campaign of at least 15 malicious plugins on the JetBrains Marketplace that pose as AI coding assistants but secretly steal the AI provider API keys developers enter. The plugins offer real features like chat, code review, and commit messages, so they work as advertised, but the moment a user pastes in an OpenAI, DeepSeek, or SiliconFlow key and clicks Apply, the key is silently sent to an attacker server over plain HTTP, with no prompt. The campaign has run since late October 2025, with new plugins as recent as June 10, and uses inflated downloads and fake reviews. Separately, malicious Chrome extensions were found capturing chatbot conversations.

Check
Review which JetBrains IDE plugins and browser extensions developers have installed, especially AI-assistant tools, and check whether any AI provider API keys were entered into third-party plugins rather than official integrations.
Affected
Developers who installed the malicious JetBrains AI-assistant plugins and entered OpenAI, DeepSeek, or SiliconFlow API keys; users of malicious Chrome extensions that harvest chatbot conversations are also exposed.
Fix
Remove untrusted AI plugins and extensions, rotate any AI provider API keys that were entered into them, restrict key permissions and spend limits, and source AI tooling only from vetted, official publishers.