Container-Escape

Overview Attribute Value CVE CVE-2026-64564 Name SCTPhantom Type Use-After-Free (UAF) → Local Privilege Escalation + Container Escape CVSS 9.8 CRITICAL (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) Affected Linux kernel 2.6.25 → 7.1.x (introduced 2007, ~18 years) Fixed 6.6.148, 6.12.101, 6.18.42, 7.1.6, mainline 7.2-rc5 Researcher Tencent Zhuque Lab (via Corvus AI pipeline) PoC ✅ Public (reproducible exploit demonstrated) CISA KEV ❌ Not yet listed Patch ✅ Upstream (mainline commit 9b2854f86f0b) What Is SCTPhantom? SCTPhantom is a use-after-free in the Linux kernel’s SCTP (Stream Control Transmission Protocol) Dynamic Address Reconfiguration implementation. An attacker who can reach the SCTP stack can trigger a stale-pointer dereference that leads to full root on the host — and, critically, escape a container to compromise the underlying host. ...

GhostLock: The 15-Year-Old Linux Kernel Bug AI Found Hiding in Plain Sight TL;DR An AI-powered security agent discovered a Linux kernel vulnerability that has existed in every major distribution since 2011. It allows any unprivileged local user to gain full root access with a 97% success rate. There is no practical mitigation — patch your kernel. Attribute Detail CVE CVE-2026-43499 CVSS 3.1 7.8 (HIGH) — AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CWE CWE-416 (Use After Free) Affected Linux 2.6.39 through 7.0 Fixed Linux 7.1 (commit 3bfdc63936dd) Stable backports 6.1.177, 6.6.144, 6.12.95, 6.18.36, 7.0.13 Not backported 5.15.y, 5.10.y LTS Discovered by VEGA AI Agent (Nebula Security) Bounty $92,337 (Google kernelCTF) Prerequisites Local access, no special privileges, CONFIG_FUTEX_PI=y What Is GhostLock? GhostLock (CVE-2026-43499) is a use-after-free vulnerability in the Linux kernel’s real-time mutex (rtmutex) priority-inheritance code. Specifically, it lives in the remove_waiter() function in kernel/locking/rtmutex.c. ...

CVE-2022-0492: Linux Kernel Cgroups v1 release_agent Container Escape Executive Summary CVE-2022-0492 is a privilege escalation vulnerability in the Linux kernel’s cgroup_release_agent_write function (kernel/cgroup/cgroup-v1.c). It allows a root process inside a container to escape to the host and gain full root privileges by abusing the cgroups v1 release_agent mechanism via user namespaces. Attribute Detail CVE CVE-2022-0492 CVSS 3.1 7.8 (HIGH) — AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CWE CWE-862 (Missing Authorization) / CWE-287 (Improper Authentication) Affected Linux kernel v2.6.24 through v5.16.6 Fixed Linux 5.17-rc3 (commit 24f6008564183) Type Container escape via cgroups v1 release_agent CISA KEV ✅ Added June 2, 2026 — actively exploited Public PoC ✅ Multiple (GitHub) Background: What is release_agent? cgroups v1 has a feature called release_agent — a path to a binary the kernel executes as root when a process in a child cgroup terminates (if notify_on_release is enabled). It lives in any cgroup v1 root directory: ...