Authentication-Bypass
N-able N-central Authentication Bypass (CVE-2026-18556) Exploited to Hijack Managed Endpoints via Take Control and Cloudflare Tunnels
An authentication bypass in N-able's N-central RMM platform, tracked as CVE-2026-18556, was exploited in the wild to gain admin access and pivot into managed customer environments using Take Control and rogue Cloudflare tunnels.
The Tenant Boundary Is a Fiction: Inside 2026's Cloud Cross-Tenant Bug Class
Five major cross-tenant breaks in twelve months — Cosmos DB, Vertex AI, Entra ID, AKS Backup — share one root cause: a privileged control-plane identity that trusts a customer-supplied name, key, or token it should never have accepted. Here's the pattern, and what to actually do about it.
CosmosEscape: Gremlin Sandbox Escape Exposed a Master Key to Every Azure Cosmos DB Database
Wiz Research chained a .NET reflection bypass in Cosmos DB's Gremlin API into code execution on Microsoft's multi-tenant gateway, recovering a platform-wide signing key that could pull the primary key for any customer's database.
Rails CVE-2026-66066: Unauthenticated File Read via Active Storage Image Uploads
A critical 9.5 CVSS flaw in Rails Active Storage lets unauthenticated attackers read arbitrary files — secrets, credentials, master keys — from any app that processes untrusted image uploads with libvips. Patch to 7.2.3.2, 8.0.5.1, or 8.1.3.1.
CVE-2026-20316: Static Credentials in Cisco Secure FMC Under Active Exploitation, Added to CISA KEV
Cisco disclosed CVE-2026-20316, a hardcoded low-privilege account baked into Secure Firewall Management Center's web interface that lets unauthenticated attackers log in and pull sensitive data — CISA added it to the KEV catalog on July 29 after confirming in-the-wild exploitation.
CVE-2026-63077: Unauthenticated RCE in JetBrains TeamCity via the Agent Polling Protocol
A deserialization flaw in TeamCity's agent polling protocol lets anyone with network access to the server run arbitrary OS commands with no login required — a direct hit on the CI/CD pipeline and everything it builds.
GitLab RCE PoC: Any Project Pusher Can Run Commands as Git via Notebook Diff Rendering
Researchers at depthfirst published working exploit code for an unfiled GitLab RCE: a two-bug chain in the Oj JSON parser behind Jupyter notebook diff rendering lets any user who can push to a project run commands as git on unpatched self-managed instances.
Certighost (CVE-2026-54121): A Low-Privileged AD User Can Impersonate Your Domain Controller
A working exploit for CVE-2026-54121 lets any domain user request a certificate for a Domain Controller through an AD CS enrollment fallback, then use it to DCSync the krbtgt hash. No admin rights, no user interaction.
CVE-2026-16232: Check Point SmartConsole Auth Bypass Grants Full Admin — Actively Exploited, Added to CISA KEV
An unauthenticated attacker can steal a SmartConsole application login token and log into Check Point's Security Management Server with full admin rights. CVE-2026-16232 (CVSS 9.3) is under active exploitation and now sits in CISA's KEV catalog with a July 25 remediation deadline.
ServiceNow AI Platform Sandbox-Escape RCE (CVE-2026-6875) Under Active Exploitation
A pre-authentication sandbox-escape flaw in ServiceNow's AI Platform is being exploited in the wild against unpatched instances, with attackers reaching the same code-execution primitive through a gadget chain that diverges from the published proof-of-concept.
Six Bulletins, One Bug Class: What Ubiquiti's 2026 UniFi Cadence Reveals About Shared-OS Edge Platforms
Since October 2025, Ubiquiti has shipped six security bulletins covering the UniFi line — five of them containing CVSS 9.9-10.0 flaws, two of them the exact same shell-injection bug class shipped seven months apart. This is what happens when one Nginx gateway and one OS layer sit in front of your network, your cameras, and your door locks.
wp2shell: A Two-CVE Chain Turns WordPress Core Into Pre-Auth RCE
CVE-2026-60137 and CVE-2026-63030 chain a REST API route-confusion bug with a WP_Query SQL injection to give unauthenticated attackers a path to full RCE on default WordPress installs.
VMSA-2026-0005: Seven Flaws in VMware Avi Load Balancer, Topped by a 9.8 Auth Bypass
Broadcom patched seven vulnerabilities in VMware Avi Load Balancer, led by CVE-2026-47865, a CVSS 9.8 authentication bypass that gives a network attacker a foothold on the control plane.
AA26-194A: NSA, CISA, FBI Warn Russian FSB Center 16 Is Harvesting Router Configs via Weak SNMP and an 18-Year-Old Cisco CSRF Bug
A 19-agency joint advisory (AA26-194A) details a years-long Russian FSB Center 16 campaign that scans for default SNMP community strings and an 18-year-old Cisco IOS CSRF flaw (CVE-2008-4128, now in CISA KEV) to exfiltrate router configs and pivot into critical infrastructure.
CVE-2026-58658: GPUStack Worker Ports Leaked LLM Prompts and Completions With No Authentication
GPUStack, an open-source GPU cluster manager for vLLM/SGLang/TensorRT-LLM inference, shipped worker debug and log-streaming endpoints with zero authentication — letting anyone who can reach the worker port read live prompts, completions, and memory profiles.
Langflow Hit With Its Second CISA KEV Entry in Four Months: CVE-2026-55255 IDOR Under Active Exploitation
CISA adds Langflow CVE-2026-55255, an IDOR letting authenticated attackers hijack other users' AI workflows, to its KEV catalog after Sysdig caught in-the-wild exploitation chained with secret harvesting.
Ubiquiti's Bulletin 066: A CVSS 10.0 in UniFi Connect Leads 25 Flaws Across the Whole UniFi Line
Ubiquiti Security Advisory Bulletin 066 discloses 25 vulnerabilities across UniFi Connect, Talk, Access, Protect, and UniFi OS — headlined by CVE-2026-50746, a CVSS 10.0 unauthenticated command injection reachable on ~100,000 internet-facing endpoints.
CVE-2026-11405: Undocumented Admin Backdoor in Tenda Router Firmware, No Patch Available
CERT/CC disclosed a hardcoded backdoor password mechanism in Tenda router firmware that grants full admin access regardless of the real password — Tenda has not responded to coordination attempts since May, and there is no patch.
Gitea CVE-2026-20896: Docker Images Trusted a Spoofable Header for Admin Access, Now Under Active Probing
Gitea's official Docker images shipped with reverse-proxy header trust wide open by default, letting anyone who can reach the port impersonate any user including an admin — Sysdig has now caught the first in-the-wild probing, 13 days after disclosure.
SimpleHelp OIDC Auth Bypass (CVE-2026-48558) Under Active Exploitation, Deploying Djinn Stealer Against Dev Credentials
A critical unsigned-token flaw in SimpleHelp RMM's OIDC login is being exploited to plant a cross-platform infostealer that hunts for cloud, source-control, and AI-assistant credentials.