Rce
NGINX Rift: 18-Year-Old Rewrite Module Heap Overflow Hits Unauthenticated RCE With Public PoC
CVE-2026-42945 is a CVSS 9.2 heap buffer overflow in ngx_http_rewrite_module that has lived in NGINX since 2008. A working unauthenticated RCE PoC is public; reachability hinges on a specific rewrite-directive pattern most prod configs actually contain.
Every Windows Endpoint is a Target: CVE-2026-41096 Heap Overflow in DNS Client Enables Remote Code Execution
CVE-2026-41096 is a CVSS 9.8 heap overflow in the Windows DNS Client. A single malicious DNS response can yield code execution on any Windows host — no auth, no user click, no document opened. The blast radius is every Windows endpoint that resolves a name.
Windows Netlogon CVE-2026-41089: Unauthenticated RCE on Every Domain Controller
May Patch Tuesday's marquee bug is a stack-based buffer overflow in MS-NRPC that hands SYSTEM on any domain controller reachable over the network. Patch DCs first, before anything else.
Apache CloudStack CVE-2026-25077: Malicious Template Lands Code Execution on KVM Hosts
Apache CloudStack 4.20.3.0 and 4.22.0.1 ship fixes for seven flaws — the headliner lets any account user execute arbitrary code on KVM hypervisor hosts via a malicious template name.
Ivanti EPMM CVE-2026-6973 Hits CISA KEV as Federal Patch Deadline Passes
Ivanti confirms in-the-wild exploitation of CVE-2026-6973, an authenticated-admin RCE in Endpoint Manager Mobile. CISA gave federal agencies until May 10 to patch — that window has now closed.
cPanel Ships Second Emergency TSR in 10 Days: CVE-2026-29201, 29202, 29203 Patch RCE, Arbitrary File Read, DoS
cPanel released its second emergency Technical Security Release in 10 days on May 8, patching three new flaws — including a CVSS 8.8 Perl injection in create_user and a chmod-based privilege escalation — barely a week after the CVE-2026-41940 authentication-bypass meltdown.
Palo Alto PAN-OS CVE-2026-0300: Unauthenticated Root RCE on Captive Portal Under Active Exploitation
Palo Alto Networks PAN-OS User-ID Authentication Portal has an unauthenticated buffer overflow yielding root RCE on PA-Series and VM-Series firewalls. CVSS 9.3, in CISA KEV, federal patch deadline May 9, 2026.
Palo Alto PAN-OS CVE-2026-0300: Unauth Root RCE in Captive Portal Exploited as Zero-Day, CISA KEV Deadline May 9
Palo Alto PAN-OS captive portal buffer overflow (CVSS 9.3) under active exploitation gives unauthenticated attackers root on PA- and VM-Series firewalls. Patches don't ship until May 13 — mitigations only.
Apache MINA Patches CVE-2026-42778 and CVE-2026-42779: Two Incomplete Fixes Land Back-to-Back as RCE
MINA 2.2.7 and 2.1.12 ship critical patches for two deserialization bypasses that each thread the needle through a previous incomplete fix — the third and fourth iterations of the same root bug stretching back to 2024.
Apache httpd CVE-2026-23918: HTTP/2 Double-Free Puts Millions of Servers at RCE Risk
Critical double-free in mod_http2's early-reset path lets remote attackers crash or take over Apache 2.4.66. Patch shipped May 4 in 2.4.67.
CVE-2026-3854: A Single Git Push Owned GitHub.com — and 88% of Enterprise Servers Were Still Vulnerable at Disclosure
Wiz disclosed a CVSS 8.7 RCE in GitHub's internal git push pipeline. Any authenticated user could execute arbitrary commands on backend servers with one git push. 88% of Enterprise Server instances were still unpatched on disclosure day.
Spinnaker Dual 10.0s: Echo SpEL and Clouddriver gitrepo RCE Gut Netflix's CD Platform (CVE-2026-32604, CVE-2026-32613)
Two critical (CVSS 10.0) RCE bugs in Spinnaker, disclosed April 21, 2026 with working PoCs: SpEL expression injection in Echo and shell injection in Clouddriver gitrepo artifacts. Any authenticated user pops the CD plane and walks out with every stored cloud credential.
CISA Adds Apache ActiveMQ CVE-2026-34197 to KEV as 13-Year-Old Jolokia RCE Sees Active Exploitation
CISA added CVE-2026-34197 to the KEV catalog today with an April 30 patch deadline. The 13-year-old Jolokia MBean flaw yields RCE on the broker JVM and is unauthenticated on ActiveMQ 6.0.0–6.1.1 when chained with CVE-2024-32114.
Composer Command Injection (CVE-2026-40261, CVE-2026-40176): Any Malicious Repository Can Execute Code on Your Build Machines
Two high-severity command injection flaws in PHP's Composer package manager allow arbitrary command execution via malicious repository metadata — no Perforce installation required for the worst one.
Marimo CVE-2026-39987: Pre-Auth RCE Exploited Within 10 Hours of Disclosure
A missing authentication check on Marimo's terminal WebSocket endpoint (CVE-2026-39987, CVSS 9.3) gave attackers a root shell with no credentials required — and they were actively exploiting it less than 10 hours after the advisory dropped.
Adobe Acrobat Reader Zero-Day CVE-2026-34621: Prototype Pollution RCE Exploited Since December
Adobe patches APSB26-43 after confirming CVE-2026-34621, a CVSS 9.6 prototype pollution flaw in Acrobat Reader actively exploited via malicious PDFs since at least December 2025.
Self-Hosted and Unprotected: The AI Workflow Tool Security Crisis
Langflow, Flowise, n8n, ComfyUI — every major self-hosted AI workflow tool has shipped unauthenticated RCE vulnerabilities in 2026. This isn't a coincidence. It's a structural failure baked into how these tools were designed.
Chrome 147 Patches 60 Security Flaws Including Two Critical WebML RCE Bugs
Google ships Chrome 147.0.7727.55 with fixes for 60 vulnerabilities—two critical heap buffer overflow and integer overflow flaws in the WebML component enable remote code execution via crafted HTML pages.
CVE-2026-32922: OpenClaw Privilege Escalation Lets Any Paired Device Achieve Full RCE
A missing scope validation in OpenClaw's device.token.rotate endpoint lets any device with operator.pairing scope mint admin tokens and execute arbitrary code on connected nodes.
CISA Adds Ivanti EPMM Zero-Days to KEV as Mass Exploitation Ramps Up
CISA adds CVE-2026-1340 to the Known Exploited Vulnerabilities catalog as attackers chain two Ivanti EPMM zero-days for unauthenticated RCE against mobile device management infrastructure.
Three High-Severity Command Injection Flaws in AWS Research and Engineering Studio Give Authenticated Users Root RCE
AWS patches three CVSS 8.8 command injection and privilege escalation bugs in Research and Engineering Studio (RES) — any authenticated user could get root on virtual desktop hosts or the cluster manager.
Flowise AI Under Active Exploitation: CVSS 10.0 RCE via CustomMCP Node Hits 12,000+ Exposed Instances
Critical unauthenticated RCE in Flowise AI's CustomMCP node (CVE-2025-59528, CVSS 10.0) is under active exploitation. Over 12,000 instances are exposed. Patch to 3.0.6 immediately.
CVE-2026-34612: Kestra SQL Injection Chains to Host RCE via PostgreSQL COPY TO PROGRAM
Critical CVSS 9.9 flaw in Kestra orchestration platform lets authenticated attackers chain SQL injection through PostgreSQL COPY TO PROGRAM for arbitrary command execution on the Docker host.
CVE-2026-4681: CVSS 10.0 Deserialization RCE in PTC Windchill Has German Police Knocking on Doors
A maximum-severity deserialization flaw in PTC Windchill and FlexPLM (CVE-2026-4681, CVSS 10.0) prompted German federal police to physically visit companies and wake up sysadmins. No patch yet. Here's what you need to know.
Ni8mare: CVSS 10.0 Unauthenticated RCE in n8n Workflow Automation (CVE-2026-21858)
A CVSS 10.0 content-type confusion bug in n8n's webhook handler lets unauthenticated attackers read arbitrary files, steal credentials, forge admin sessions, and achieve full RCE. Patch to 1.121.0 immediately.
Progress ShareFile Pre-Auth RCE Chain: CVE-2026-2699 and CVE-2026-2701 Give Attackers Full Server Takeover
Two critical Progress ShareFile flaws chain into a pre-authentication RCE — with ~30,000 Storage Zone Controllers exposed and a public POC now available.
Langflow's 'Patched' Version Is Still Exploitable — CVE-2026-33017 Deadline Hits April 8
JFrog confirms Langflow 1.8.2 remains vulnerable to CVE-2026-33017 unauthenticated RCE despite being widely reported as fixed. CISA KEV deadline is April 8.
Cisco Patches Two 9.8 CVSS Flaws in IMC and Smart Software Manager — No Workarounds Available
Critical authentication bypass in Cisco IMC (CVE-2026-20093) and unauthenticated root RCE in SSM On-Prem (CVE-2026-20160) both score CVSS 9.8. Patch immediately — no workarounds exist.
React2Shell Under Mass Exploitation: 766+ Next.js Hosts Breached in Credential Harvesting Campaign
Threat actor UAT-10608 is mass-exploiting CVE-2025-55182 (React2Shell) to breach Next.js deployments and harvest cloud credentials, SSH keys, and API tokens at scale.
CVE-2026-32746: 32-Year-Old GNU Telnetd Bug Gives Unauthenticated Attackers Root via Port 23
A CVSS 9.8 pre-authentication buffer overflow in GNU inetutils telnetd lets remote attackers get root before the login prompt. Patch is incomplete across major distros and a public PoC exists.
Oracle Identity Manager Pre-Auth RCE: CVE-2026-21992 Emergency Patch
Oracle issued an out-of-band emergency fix for CVE-2026-21992, a CVSS 9.8 unauthenticated RCE in Oracle Identity Manager's REST WebServices component affecting versions 12.2.1.4.0 and 14.1.2.1.0.
F5 BIG-IP APM Flaw Silently Upgraded from DoS to RCE — Now Actively Exploited
A five-month-old F5 BIG-IP APM bug just got reclassified from denial-of-service to pre-auth RCE. Attackers didn't wait for the memo.