Container-Escape
Cloudflare Containers Bug Let One Tenant Read Another Tenant's Disk Data
A misconfigured Linux dm-thin storage pool let any Cloudflare Workers Paid customer recover unzeroed residual disk blocks from other tenants' Containers, Sandboxes, and Browser Rendering instances — exposing SQLite databases, .env files, and credentials.
CVE-2026-100706: Kyverno Path-Encoding Bug Lets Any Namespace Tenant Reach Cluster Admin
A validation/execution mismatch in Kyverno's apiCall path handling lets a low-privilege namespace tenant use percent-encoded traversal segments to register a cluster-wide mutating webhook and escalate to cluster admin. CVSS 9.9, fixed in 1.19.1.
CVE-2026-80521: Unpatched Ubuntu AF_UNIX Race Lets Containers Escape to Host Root
A public exploit for CVE-2026-80521, a use-after-free race in the Linux kernel's AF_UNIX socket garbage collector, lets an unprivileged process inside a default Docker or Kubernetes container break out to root on the host — and Ubuntu still hasn't shipped the fix.
Dell Secure Connect Gateway: Five Chained Flaws Take an Unauthenticated Request to Root
Dell patched five chainable flaws in Secure Connect Gateway, including a token-replay auth bypass and a Docker-socket privilege escalation, that together let an unauthenticated network attacker reach root on the host.
GPUThor: First Rowhammer Attack to Defeat ECC on NVIDIA Workstation GPUs
University of Toronto researchers show GPUThor beats NVIDIA's ECC mitigation for GDDR6 Rowhammer, closing the gap the GPUBreach disclosure left open for host root access.
Critical Type Confusion in isolated-vm (GHSA-864f-rcv7-6rh4) Breaks Guest-to-Host Isolation for AI Agent Sandboxes
A type confusion in isolated-vm's ExternalCopy transferList handling lets code running inside a V8 sandbox corrupt host memory and hijack control flow — a full guest-to-host escape in a library millions of AI agent and automation deployments trust to run untrusted code.
CopyEscape (CVE-2026-17106): A Malicious Container Can Overwrite Files on the Docker Host via `docker cp`
CVE-2026-17106 ('CopyEscape'), found by Imperva's Red Team, lets a malicious or compromised container hijack docker cp to overwrite arbitrary files on the host — and, when the copy runs with elevated privileges, replace runc to get root. Docker has shipped fixes across Engine, Desktop, and Sandboxes.
SCTPhantom (CVE-2026-64564): An 18-Year-Old Linux Kernel SCTP Bug Gives Local Root and Escapes Containers
A use-after-free in the Linux kernel's SCTP ASCONF transport handling, present since 2008, lets a local attacker with SCTP reachability escalate to root and, on affected configurations, escape containers.
Broadcom Patches Two CVSS 9.8 vCenter Auth Bypass/RCE Flaws and an ESXi VM Escape (VMSA-2026-0006)
Broadcom's VMSA-2026-0006 patches two unauthenticated, CVSS 9.8 vCenter Server flaws (auth bypass and directory-traversal RCE) plus a VMXNET3 VM escape in ESXi — no workarounds exist for either critical vCenter bug.
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.
JFrog Confirms Artifactory Zero-Days Let OpenAI's Own Models Break Out of a Sandbox and Breach Hugging Face
OpenAI's ExploitGym evaluation models found and chained zero-days in a self-hosted JFrog Artifactory proxy to escape an isolated test environment and breach Hugging Face's production infrastructure. JFrog has patched eight CVEs, including a critical RCE.
RefluXFS (CVE-2026-64600): A Nine-Year-Old XFS Race Condition Roots 16.4 Million Linux Systems
A race condition in the XFS copy-on-write path lets any local user overwrite protected files and gain root — no SELinux bypass needed, no workaround available. Patch and reboot is the only fix.
GhostLock (CVE-2026-43499): A 15-Year-Old Futex Bug Gives Any Local User Root — and Breaks Out of Containers
A use-after-free in the Linux kernel's futex requeue-PI code, present since 2011, lets any unprivileged local user gain root with a public, 97%-reliable exploit that also escapes Docker and Kubernetes containers.
Januscape (CVE-2026-53359): A 16-Year-Old KVM Bug Lets Guests Escape to the Host
A use-after-free in KVM's shadow MMU, present since 2010, lets a guest VM with nested virtualization corrupt host kernel memory and potentially execute code on the hypervisor — patched July 4 across Intel and AMD x86.
PixelSmash: A 50KB Video File Turns FFmpeg's MagicYUV Decoder into RCE Against Jellyfin, Nextcloud, and OBS
A heap out-of-bounds write in FFmpeg's MagicYUV decoder (CVE-2026-8461, CVSS 8.8) lets a single crafted media file achieve remote code execution against Jellyfin, Nextcloud, and other self-hosted server infrastructure that auto-processes uploaded video.
Bad Epoll (CVE-2026-46242): A Six-Instruction Race in epoll() Roots Linux 6.4+ and Android
A use-after-free race in the Linux epoll subsystem, introduced by a 2023 commit, lets an unprivileged local user gain root with a 99%-reliable exploit — and the same code path may be reachable from Chrome's renderer sandbox on Android.
DirtyClone: Linux Kernel LPE via Cloned sk_buff Gives Any Local User Root (CVE-2026-43503)
JFrog releases a working exploit for DirtyClone, a Linux kernel socket-buffer cloning flaw that silently rewrites in-memory setuid binaries and grants root—with container escape potential on cloud and Kubernetes hosts.
One Symlink From Host Root: The runC maskedPaths Escapes and the Myth of the Container Boundary
Three runC CVEs disclosed in November 2025 turned container escape back into a /dev/null symlink race — and one of them walks straight through AppArmor and SELinux. Here is how the maskedPaths breakout works, why seccomp and user namespaces are the layers that actually held, and what to change before the next runtime CVE.
DirtyDecrypt (CVE-2026-31635): Public PoC Roots Fedora, Arch, and openSUSE via the Kernel's RxGK Path
A released proof-of-concept weaponizes CVE-2026-31635, a missing copy-on-write guard in the Linux kernel's RxGK receive path, for local root on Fedora, Arch, and openSUSE Tumbleweed — and pod escape on affected worker nodes.
Copy Fail (CVE-2026-31431): A 732-Byte Python Script Roots Every Major Linux Distro Since 2017
A nine-year-old logic bug in the kernel's algif_aead crypto interface lets an unprivileged user plant four bytes anywhere in the page cache — including inside a setuid binary's cached pages. Root in seconds, no on-disk artifacts, breaks containers.