buffer-utilities: Lazarus Group npm Brandjacking Dropper
Sonatype and JFrog describe buffer-utilities as a malicious npm brandjacking package in a Lazarus Group campaign; the package acts as a dropper that fetches and launches remote payloads.
Research
Technical notes on security incidents, vulnerabilities, and supply chain threats, written for quick triage and review.
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- Splunk Enterprise CVE-2026-20253: KEV Arbitrary File Creation via PostgreSQL Sidecar
CISA added Splunk Enterprise CVE-2026-20253 to KEV on 2026-06-18. The vulnerability allows an unauthenticated user to create or truncate arbitrary files through a PostgreSQL sidecar service endpoint in affected Splunk Enterprise releases.
- Mastra npm Supply Chain Attack
On 2026-06-17, public reporting described an @mastra package-scope compromise that pushed easy-day-js as a malicious dependency across 140+ packages, executed a setup.cjs postinstall dropper, and exposed more than 1.1 million weekly downloads to second-stage credential theft and remote code execution behavior.
- Pythagora gpt-pilot GitHub Compromise
An attacker hijacked a Pythagora co-founder's GitHub account, force-pushed a Shai-Hulud credential-stealer to gpt-pilot's main branch, and lost the payload twice to ruff lint failures before any public downstream execution was shown.
- Widget Factory Joomla Content Editor CVE-2026-48907: KEV Unauthenticated Profile Upload to PHP RCE
CISA added CVE-2026-48907 to KEV on 2026-06-16. JCE 2.9.99[.]5 and 2.9.99[.]6 fix an unauthenticated editor-profile upload flaw that can lead to PHP code execution on Joomla sites.
- Cisco Catalyst SD-WAN Manager CVE-2026-20262: KEV Path Traversal in the Management Plane
CISA added Cisco Catalyst SD-WAN Manager CVE-2026-20262 to KEV on 2026-06-15 with a 2026-06-29 due date. Cisco says authenticated attackers with at least write access can abuse a web-UI file-upload path traversal to create or overwrite files on affected systems across all SD-WAN deployment types.
- LiteSpeed cPanel Plugin CVE-2026-54420: KEV Symlink-Following Exposure in Shared Hosting
CISA added LiteSpeed cPanel Plugin CVE-2026-54420 to KEV on 2026-06-15 with a 2026-06-18 due date. LiteSpeed says v2.4.8, bundled with WHM Plugin v5.3.2.1, fixes a symlink-following flaw that can let a user with FTP or web shell access escalate to root on shared hosting servers running CloudLinux/CageFS.
- Atomic Arch: AUR Package Takeover Delivers Infostealers and eBPF Rootkits
Attackers adopted orphaned Arch User Repository (AUR) packages using forged commit signatures to inject npm and bun dependency executions. The rogue packages 'atomic-lockfile' and 'js-digest' delivered a Rust credential stealer, systemd persistence, and an eBPF rootkit.
- OptinMonster Supply Chain Attack
Awesome Motive's CDN-hosted SDK files for WordPress plugins OptinMonster, TrustPulse, and PushEngage were tampered to inject malicious JavaScript. When an administrator logs in, the payload runs in their context, creates rogue administrator accounts, and silently installs a self-hiding PHP backdoor plugin, exfiltrating credentials to tidio[.]cc.
- Oracle PeopleSoft CVE-2026-35273: KEV SSRF-to-RCE Zero-Day Exploitation
CISA added actively exploited Oracle PeopleSoft PeopleTools CVE-2026-35273 to KEV on 2026-06-12. Affects PSEMHUB in versions 8.61 and 8.62, allowing unauthenticated remote code execution exploited by ShinyHunters.
- Ghost CMS CVE-2026-26980: Critical SQL Injection Leads to Admin Takeover and ClickFix Campaigns
Attackers are actively exploiting CVE-2026-26980, a critical SQL injection in the Ghost CMS Content API, to extract Admin API Keys. Stolen keys are used to inject malicious JavaScript into published articles, serving ClickFix social engineering payloads to website visitors.
- Ivanti Sentry CVE-2026-10520: KEV Pre-Auth OS Command Injection
CISA and Ivanti confirmed active exploitation of CVE-2026-10520, a critical pre-authentication OS command injection vulnerability in Ivanti Sentry. Attackers can execute arbitrary commands with root privileges by sending a crafted HTTP POST request to Sentry MICS APIs.
- Arista EOS CVE-2026-7473: KEV Tunneled Packet Decapsulation Bypass
CISA added actively exploited Arista EOS CVE-2026-7473 to KEV on 2026-06-09. Affected tunnel endpoints may decapsulate unexpected protocols sent to a configured decapsulation IP; Arista rates the issue Medium and provides configuration checks and ACL mitigations.
- Cisco Catalyst SD-WAN Manager CVE-2026-20245: KEV CLI Privilege Escalation to Root
CISA added CVE-2026-20245 to KEV on 2026-06-09. Cisco scopes the authenticated local command-injection flaw to Catalyst SD-WAN Controller, Manager, and Validator and lists fixed 20.18.3.1 and 26.1.1.2 releases as of 2026-06-10.
- Google Chromium V8 CVE-2026-11645: KEV Out-of-Bounds Execution in JavaScript Engine
Google fixed actively exploited CVE-2026-11645 in the June 8, 2026 Chrome desktop update. The V8 out-of-bounds memory flaw can allow code execution inside the browser sandbox through crafted HTML.
- Check Point Security Gateway CVE-2026-50751: KEV VPN Authentication Bypass
Check Point and CISA confirmed active exploitation of CVE-2026-50751, an IKEv1 Remote Access and Mobile Access authentication bypass. Check Point observed targeting from May 7, 2026, added campaign IOCs through June 10, and linked one post-compromise case to a Qilin ransomware affiliate.
- LiteLLM CVE-2026-42271: KEV Command Injection in AI Proxy Servers
CISA added BerriAI LiteLLM CVE-2026-42271 to its KEV catalog on 2026-06-08 due to active exploitation. This high-severity command injection vulnerability in MCP server preview endpoints allows authenticated (or unauthenticated, when chained with CVE-2026-48710) users to run arbitrary shell commands on the host proxy.
- Hades Cluster PyPI Worm Abuses Python Startup Hooks
Socket disclosed 37 malicious PyPI wheels on June 7, 2026 and 23 additional malicious release artifacts on June 8, while StepSecurity's June 16 report independently re-corroborated the Hades cluster through mflux-streamlit and mrbios coverage. Hades-linked loaders abuse Python startup hooks or native extensions to execute Bun-launched credential stealers.
- Linux Kernel cgroups v1 Container Escape CVE-2022-0492 Added to KEV
CISA added the Linux Kernel cgroups v1 container escape vulnerability (CVE-2022-0492) to KEV on 2026-06-02. The flaw allows unprivileged container processes with CAP_SYS_ADMIN or uid 0 to write to cgroups release_agent files and execute code on the host, escaping the container namespace. System operators should audit host kernels, verify container capabilities, and disable unprivileged user namespaces.
- Claude Code GitHub Action Secret Exposure
Microsoft reported that the Claude Code GitHub Action could expose workflow secrets through a Read-tool path that reached /proc/self/environ; Anthropic shipped v2.1.128 as the fixed release.
- Miasma DurableTask GitHub Repository Compromise
On June 5, 2026, the official Azure/durabletask GitHub repository was compromised. Threat actors pushed a backdated commit ('Switched DataConverter to OrchestrationContext [skip ci]') that added a malicious tasks.json and configuration files targeting AI coding tools to execute credential-stealing payloads.
- Mirasvit Cache Warmer CVE-2026-45247 Added to KEV
CISA added Mirasvit Cache Warmer for Magento 2 CVE-2026-45247 to KEV on 2026-06-03. Adobe Commerce and Magento operators should verify Cache Warmer versions, collect admin and web logs, and hunt for suspicious module and admin activity.
- Phantom Gyp npm Worm Abuses node-gyp Build Hooks
Snyk disclosed a June 2026 npm supply-chain wave that abuses native-addon build behavior through binding.gyp and node-gyp. The Phantom Gyp/Miasma activity affects packages including @vapi-ai, abandoned-package, and autotel packages and should be handled as install-time credential exposure.
- SolarWinds Serv-U CVE-2026-28318: KEV Denial of Service Vulnerability in Managed File Transfer
CISA added SolarWinds Serv-U CVE-2026-28318 to KEV on 2026-06-05, indicating active exploitation. The high-severity vulnerability allows remote, unauthenticated attackers to cause a Denial of Service (DoS) by sending specially crafted HTTP POST requests with a Content-Encoding: deflate header. SolarWinds has released version 15.5.4 Hotfix 1 to address the flaw.
- IronWorm npm Supply-Chain Worm Uses eBPF Rootkit
JFrog Security disclosed IronWorm, a Rust-based npm information-stealing worm found in 36 package versions. It uses an eBPF rootkit and Tor for stealth and propagates through stolen credentials and trusted publishing workflows.
- Android Framework CVE-2025-48595: KEV Local Privilege Escalation
Google says Android Framework CVE-2025-48595 may be under limited, targeted exploitation. The high-severity integer-overflow issue affects Android 14, 15, 16, and 16 QPR2 and is addressed at the 2026-06-01 security patch level.
- Red Hat Cloud Services npm Trusted-Publishing Compromise
Multiple @redhat-cloud-services npm packages were compromised on 2026-06-01 through trusted-publishing abuse tied to the Mini Shai-Hulud Miasma wave. The malicious releases added install-time payload execution, credential collection, destructive fallback behavior, and GitHub workflow tampering risk.
- cPanel & WHM CVE-2026-41940: KEV Authentication Bypass in Hosting Control Planes
CISA added WebPros cPanel & WHM and WP2 CVE-2026-41940 to KEV on 2026-04-30 and marks ransomware use as known. WebPros patched many cPanel branches and WP2 136.1.7, provided session-file IOC checks, and urged immediate update or service exposure reduction.
- Linux Copy Fail CVE-2026-31431: KEV Privilege Escalation on Shared Build Hosts
CISA added Linux kernel CVE-2026-31431 to KEV on 2026-05-01. Theori's Copy Fail research ties the bug to AF_ALG AEAD in-place operation and shows why shared CI runners, Kubernetes nodes, and multi-tenant Linux hosts need kernel patch proof or AF_ALG mitigation.
- Malware-Slop mouse5212-super-formatter npm Package Targets AI Workspaces
Snyk and OX tracked mouse5212-super-formatter as a malicious npm package published on 2026-05-26 and removed on 2026-05-27. The package should be treated as credential theft risk for AI-assisted workspaces, Claude/Cursor context files, GitHub tokens, npm tokens, and build logs.
- Oracle WebLogic Server CVE-2024-21182: KEV Authentication Bypass
CISA added Oracle WebLogic Server CVE-2024-21182 to its KEV catalog on 2026-06-01 due to active exploitation. This high-severity authentication bypass vulnerability allows unauthenticated attackers with network access via T3 or IIOP protocols to compromise the server and gain unauthorized access to critical data.
- DAEMON Tools Lite CVE-2026-8398: Signed Installer Supply-Chain Compromise
CISA added DAEMON Tools Lite CVE-2026-8398 to KEV after the vendor confirmed unauthorized interference in its infrastructure and compromised DAEMON Tools Lite installation packages.
- PAN-OS CVE-2026-0257: GlobalProtect Authentication Bypass Added to KEV
CISA added PAN-OS CVE-2026-0257 to KEV on 2026-05-29 after limited exploitation of unpatched GlobalProtect portal and gateway configurations that use authentication override cookies.
- Microsoft-tracked npm dependency-confusion developer-profiling campaign
Microsoft attributed a 33-package npm dependency-confusion campaign to shared postinstall tradecraft that profiled developer environments, ran in reconnaissance-only mode, and beaconed to a shared command-and-control endpoint.
- GemStuffer RubyGems Exfiltration Channel
GemStuffer used RubyGems package publishing as a data-staging channel, wrapping scraped UK council ModernGov portal responses into junk gem artifacts published with embedded RubyGems API keys.
- Sicoob.Sdk NuGet Certificate Exfiltration
Malicious Sicoob.Sdk NuGet releases impersonated a banking SDK and exfiltrated Sicoob client IDs, PFX passwords, and base64-encoded PFX certificate archives through a hardcoded Sentry endpoint.
- vpmdhaj npm OpenSearch Typosquats Steal Cloud and CI/CD Secrets
Microsoft reported 14 typosquatted npm packages under the vpmdhaj scope that impersonated OpenSearch, AWS SDK, STS, and Bun packages while collecting AWS, GitHub Actions, npm, Vault, Kubernetes, SSH, and local cloud configuration secrets.
- GlassWorm Developer Supply-Chain Botnet Takedown
CrowdStrike, Google, and Shadowserver disrupted GlassWorm command-and-control on 2026-05-26 after the campaign used malicious IDE extensions, packages, and poisoned repositories to compromise developer systems.
- LiteSpeed cPanel Plugin CVE-2026-48172: Root Privilege Escalation
CISA added LiteSpeed User-End cPanel Plugin CVE-2026-48172 to KEV on 2026-05-26 with a 2026-05-29 due date. NVD and LiteSpeed now provide exact advisory links, affected version bounds, and the vendor log-check command for redisAble exploitation.
- Windows Shell CVE-2026-32202 KEV: Zero-Click NTLM Coercion
CVE-2026-32202 is an actively exploited Windows Shell protection-mechanism failure that Akamai traced to an incomplete patch for an APT28 LNK exploit chain, allowing zero-click NTLM authentication coercion when Explorer renders a malicious shortcut.
- Chromium Background Fetch Zero-Day: Persistent Service Worker Exposure
A public Chromium Background Fetch proof of concept showed that a service worker could repeatedly start background fetches after a malicious page visit. Chromium restricted BackgroundFetchManager.fetch() from service-worker contexts on May 21, 2026; downstream deployment remained browser- and channel-specific through June 10.
- Cisco Catalyst SD-WAN CVE-2026-20182: KEV Control-Plane Exposure
CISA added Cisco Catalyst SD-WAN CVE-2026-20182 to KEV on 2026-05-14. Cisco confirmed limited exploitation, published fixed releases, and documented vmanage-admin authentication and anomalous control-connection evidence for compromise review.
- Drupal Core CVE-2026-9082: KEV SQL Injection Exposure
CISA added Drupal Core CVE-2026-9082 to KEV on 2026-05-22. The exploitable surface is PostgreSQL-backed Drupal Core in affected 8.9.x, 10.x, and 11.x ranges; this article provides composer, settings, and telemetry scripts for exposure and closure.
- Langflow CVE-2025-34291: KEV Origin Validation Exposure
CISA added Langflow CVE-2025-34291 to KEV on 2026-05-21. The issue combines permissive CORS and credentialed refresh-token behavior; this article provides dependency, container, HTTP telemetry, and token-abuse audit scripts.
- Microsoft Defender CVE-2026-41091: KEV Engine EoP Exposure
CISA added Microsoft Defender CVE-2026-41091 to KEV on 2026-05-20. MSRC marks exploitation detected and gives the exact fixed Malware Protection Engine version 1.1.26040.8.
- Microsoft Defender CVE-2026-45498: KEV Platform DoS Exposure
CISA added Microsoft Defender CVE-2026-45498 to KEV on 2026-05-20. MSRC marks exploitation detected and gives the exact fixed Defender Antimalware Platform version 4.18.26040.7.
- Microsoft Exchange CVE-2026-42897: KEV OWA Mitigation Exposure
CISA added Exchange Server CVE-2026-42897 to KEV on 2026-05-15. MSRC marks exploitation detected and points to Exchange Emergency Mitigation Service mitigation ID M2 rather than a normal update table.
- PAN-OS CVE-2026-0300: Captive Portal Remote Root RCE
CISA added PAN-OS CVE-2026-0300 to KEV on 2026-05-06. The vulnerability involves an out-of-bounds write in the User-ID Authentication Portal (Captive Portal) affecting PA-Series and VM-Series firewalls, leading to unauthenticated remote root code execution; this article provides config audits and post-compromise triage scripts.
- Starlette CVE-2026-48710: BadHost Authentication Bypass
Starlette CVE-2026-48710 (BadHost) is a Host-header URL reconstruction flaw fixed in Starlette 1.0.1. New OSTIF, X41, Tenable, and BadHost scanner sources clarify that the highest-risk deployments are FastAPI/Starlette/LLM services whose middleware makes security decisions from request.url.path.
- Trend Micro Apex One CVE-2026-34926: KEV Server Build Exposure
CISA added Trend Micro Apex One CVE-2026-34926 to KEV on 2026-05-21. Trend Micro reports at least one in-the-wild attempt and fixed builds 17079, 18012, and 14.0.20731; this article provides build-export and agent-deployment audit scripts.
- Windows cldflt.sys Zero-Day: MiniPlasma Kernel LPE
MiniPlasma is a public Windows cldflt.sys Cloud Filter driver LPE proof of concept that BleepingComputer tested on fully patched Windows 11 Pro with May 2026 updates. The article now replaces generic secondary sourcing with exact reporting and narrows the claim to local SYSTEM escalation.
- actions-cool GitHub Actions Tag Hijack Credential Theft
All 53 reviewed tags for actions-cool/issues-helper and all 15 tags for actions-cool/maintain-one-comment were moved to dangling imposter commits that scraped GitHub Actions runner memory and exfiltrated credentials. GitHub now blocks access to both repositories.
- art-template npm Coruna Browser Exploit Compromise
Unauthorized art-template releases 4.13.3, 4.13.5, and 4.13.6 modified the browser bundle to load remote JavaScript. The later chain delivered a Coruna iOS exploit framework; npm has removed 4.13.5 and 4.13.6, while 4.13.2 remains the last verified clean release.
- Laravel-Lang Composer Tag Rewrite RCE Compromise
Four Laravel-Lang repositories were compromised through rewritten Composer tags that loaded a PHP backdoor through Composer autoload. Maintainers restored the tags on May 23, but installs from the exposure window require credential rotation and commit-level verification.
- Megalodon GitHub Actions Secret Exfiltration Campaign
Megalodon added malicious GitHub Actions workflows to thousands of public repositories to collect environment variables, cloud credentials, source-control secrets, and runner tokens.
- Packagist GitHub Postinstall Hook Malware Campaign
A campaign inserted malicious package.json postinstall hooks into Packagist-linked GitHub repositories, causing npm install workflows to download and execute a GitHub Releases binary as /tmp/.sshd.
- shopsprint/decimal Go Module DNS Backdoor Typosquat
The Go module github.com/shopsprint/decimal typosquatted github.com/shopspring/decimal and used an init-time DNS TXT command loop in v1.3.3.
- TrapDoor Cross-Ecosystem Crypto Stealer Campaign
TrapDoor is an active cross-registry supply-chain campaign using npm postinstall hooks, PyPI import-time execution, and Rust build scripts to steal developer, cloud, SSH, and crypto wallet secrets.
- Mini Shai-Hulud Self-Propagating Software Supply Chain Worm
Mini Shai-Hulud is a self-propagating npm/PyPI supply-chain worm. JFrog's May 12 and May 19 updates add a broader count of 170+ npm and 2 PyPI packages, a 323-package @antv wave, and a related @cap-js/openapi 1.4.1 variant.
- Microsoft DurableTask Python SDK PyPI Hijacking
On May 19, 2026, the official Microsoft durabletask Python SDK was compromised on PyPI. Threat actors used hijacked publishing credentials to directly upload malicious versions containing a cloud credential-harvesting payload.
- Nx Console VS Code Extension Compromise
On May 18, 2026, the official Nx Console VS Code extension was compromised when attackers used an OAuth token stolen in the TanStack compromise to publish malicious version v18.95.0, resulting in the theft of 3,800 internal GitHub repositories.
- Node-IPC Expired Domain & Maintainer Account Hijacking
On May 14, 2026, the highly popular Node.js library node-ipc was compromised in a major supply chain attack. Attackers re-registered the expired email domain of a dormant lead maintainer to reset their npm account password and publish credential-stealing updates.
- TanStack CI/CD Release Pipeline Poisoning
On May 11, 2026, the popular open-source project TanStack fell victim to a CI/CD release pipeline poisoning attack. Threat actors hijacked the release pipeline via a pull request exploitation vector and OIDC token theft to publish 84 backdoored versions across 42 packages.
- intercom-client npm Mini Shai-Hulud Compromise
Intercom says an attacker published `[email protected]` on April 30, 2026 using credentials from a compromised developer account. The package executed a Bun-launched credential stealer during installation and was removed within hours.
- Lightning PyPI Bun-Based Credential Stealer
On April 30, 2026, malicious `lightning` PyPI releases 2.6.2 and 2.6.3 shipped an import-time loader that bootstrapped Bun and executed a large obfuscated JavaScript credential stealer.
- elementary-data PyPI and GHCR GitHub Actions Compromise
A malicious `elementary-data==0.23.3` release was pushed to PyPI and GHCR after attackers exploited a GitHub Actions script-injection path, adding an interpreter-startup `.pth` infostealer.
- Bitwarden CLI npm 2026.4.0 Credential Stealer
Bitwarden confirmed that @bitwarden/[email protected] was maliciously distributed through the npm CLI delivery path for a short April 22, 2026 window. CVE-2026-42994 tracks the incident; artifact analysis tied the package to bw_setup.js, bw1.js, Bun bootstrap, credential theft, and GitHub fallback channels.
- Xinference PyPI 2.6.x Import-Time Credential Exfiltration
JFrog reported that the legitimate PyPI package xinference shipped malicious versions 2.6.0, 2.6.1, and 2.6.2 with import-time code in xinference/__init__.py. The payload collected host and secret material into love[.]tar[.]gz and posted it to whereisitat[.]lucyatemysuperbox[.]space with header X-QT-SR: 14.
- Axios npm Package Compromise (UNC1069)
On March 31, 2026, the popular JavaScript HTTP client Axios was compromised when attackers hijacked a lead maintainer's npm account, publishing malicious versions containing a phantom dependency to drop a cross-platform Remote Access Trojan (RAT).
- Crypto Private Key Stealer Solana/Ethereum Typosquats
Socket disclosed five npm typosquats targeting Solana and Ethereum developers on 2026-03-24. Registry metadata shows malicious releases dating from 2025-11-18 through 2026-02-16; npm replaced four package records with security placeholders on 2026-04-01.
- LiteLLM Python SDK PyPI Hijacking & Cascading Trust Failure
On March 24, 2026, the popular LiteLLM Python package was compromised on PyPI. Attackers harvested PyPI publishing secrets from LiteLLM's CI/CD runner via a previously backdoored dependency, uploading malicious versions containing a python startup hook payload.
- Aqua Security Trivy CI/CD Pipeline & Tag Poisoning
On March 19, 2026, the widely adopted container vulnerability scanner Trivy was compromised in a major supply chain attack. Cybercrime group TeamPCP poisoned version tags to harvest and exfiltrate runner credentials.
- PyPI spellcheckpy Typosquatting RAT Campaign
Attackers published typosquatted versions of the popular pyspellchecker library to deliver a Remote Access Trojan (RAT) hidden inside compressed Basque dictionary files.
- semantic-types PyPI Solana Keypair Monkey Patch
Socket reported that semantic-types became malicious at version 0.1.5 and 0.1.6, with five Solana-themed PyPI packages pulling it transitively. The payload monkey-patched solders[.]keypair[.]Keypair constructors, encrypted Solana private keys with an RSA-2048 public key, and exfiltrated ciphertext through Solana Devnet SPL memo transactions.
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