Important: containerd

Issue Overview: When using LookupCNAME with the cgo DNS resolver, a very long CNAME response can trigger a double-free of C memory and a crash. CVE-2026-33811 When processing HTTP/2 SETTINGS frames, transport will enter an infinite loop of writing CONTINUATION frames if it receives a...

AZL-88059 CVE-2026-39821 affecting package moby-containerd-cc for versions less than 1.7.7-13

The ToASCII and ToUnicode functions incorrectly accept Punycode-encoded labels that decode to an ASCII-only label. For example, ToUnicode"xn--example-.com" incorrectly returns the name "example.com" rather than an error. This behavior can lead to privilege escalation in programs using the idna...

Critical Photon OS Security Update - PHSA-2026-5.0-90-0855

Updates of 'rubygem-addressable', 'libvirt', 'libxml2', 'containerd', 'glib', 'glibc', 'docker', 'go', 'python3-idna', 'gtk3' packages of Photon OS have been released...

GHSA-FQW6-GF59-QR4W containerd user ID handling bypass allows runAsNonRoot evasion

Impact A bug was found in containerd where containers launched with a numeric User directive that cannot be parsed as a 32-bit integer are incorrectly treated as a username. If a crafted image provides an /etc/passwd file mapping this large numeric string to root, the container ultimately runs as...

Access of Resource Using Incompatible Type ('Type Confusion')

Overview Affected versions of this package are vulnerable to Access of Resource Using Incompatible Type 'Type Confusion' via improper handling of numeric User directives in container configuration. An attacker can gain elevated privileges by supplying a crafted image with an /etc/passwd file that...

Access of Resource Using Incompatible Type ('Type Confusion')

Overview Affected versions of this package are vulnerable to Access of Resource Using Incompatible Type 'Type Confusion' via improper handling of numeric User directives in container configuration. An attacker can gain elevated privileges by supplying a crafted image with an /etc/passwd file that...

Access of Resource Using Incompatible Type ('Type Confusion')

Overview Affected versions of this package are vulnerable to Access of Resource Using Incompatible Type 'Type Confusion' via improper handling of numeric User directives in container configuration. An attacker can gain elevated privileges by supplying a crafted image with an /etc/passwd file that...

containerd user ID handling bypass allows runAsNonRoot evasion

Impact A bug was found in containerd where containers launched with a numeric User directive that cannot be parsed as a 32-bit integer are incorrectly treated as a username. If a crafted image provides an /etc/passwd file mapping this large numeric string to root, the container ultimately runs as...

SUSE CVE-2020-15157

In containerd an industry-standard container runtime before version 1.2.14 there is a credential leaking vulnerability. If a container image manifest in the OCI Image format or Docker Image V2 Schema 2 format includes a URL for the location of a specific image layer otherwise known as a “foreign...

PT-2026-42700

Name of the Vulnerable Software and Affected Versions containerd versions prior to 2.3.1 containerd versions prior to 2.2.4 containerd versions prior to 2.0.9 containerd versions prior to 1.7.32 Description An input validation error exists where containers launched with a numeric User directive...

CVE-2026-35469 affecting package moby-containerd-cc for versions less than 1.7.7-12

CVE-2026-35469 affecting package moby-containerd-cc for versions less than 1.7.7-12. A patched version of the package is available...

Amazon Linux 2 : containerd, --advisory ALAS2ECS-2026-109 (ALASECS-2026-109)

The version of containerd installed on the remote host is prior to 2.1.7-1. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2ECS-2026-109 advisory. Arithmetic over induction variables in loops were not correctly checked for underflow or overflow in the Go compiler...

Unity Linux 20.1060e / 20.1070e Security Update: containerd (UTSA-2026-017436)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-017436 advisory. containerd is an open source container runtime with an emphasis on simplicity, robustness and portability. A bug was found in containerd where container root...

SUSE-SU-2026:21630-1 Security update for containerd

This update for containerd fixes the following issue: - CVE-2026-33186: google.golang.org/grpc: authorization bypass due to improper validation of the HTTP/2 :path pseudo-header bsc1260296...

github.com/containerd/containerd: containerd: Security bypass via Container Device Interface (CDI) annotation smuggling during checkpoint restoration.

A flaw was found in containerd, an open-source container runtime. The Container Runtime Interface CRI implementation, which allows Kubernetes to interact with container runtimes, improperly trusts Container Device Interface CDI annotations found within untrusted checkpoint image metadata during...

github.com/containerd/containerd: containerd: Arbitrary host file read via symlink following in CRI checkpoint restore

A flaw was found in containerd, an open-source container runtime. The Container Runtime Interface CRI plugin incorrectly restores container logs from a checkpoint image. This vulnerability, categorized as a Path Traversal CWE-61, allows an attacker to read arbitrary files on the host system by...

CVE-2026-39882 affecting package moby-containerd-cc for versions less than 1.7.7-11

CVE-2026-39882 affecting package moby-containerd-cc for versions less than 1.7.7-11. A patched version of the package is available...

RHCOS 4 : OpenShift Container Platform 4.7.0 (RHSA-2020:5634)

The remote Red Hat Enterprise Linux CoreOS 4 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:5634 advisory. - atomic-openshift: cross-namespace owner references can trigger deletions of valid children CVE-2019-3884 - kubernetes: Ceph RBD...

SUSE-SU-2026:21490-1 Security update for containerd

This update for containerd fixes the following issue: - CVE-2026-33186: google.golang.org/grpc: authorization bypass due to improper validation of the HTTP/2 :path pseudo-header bsc1260296...

Amazon Linux 2 : containerd, --advisory ALAS2NITRO-ENCLAVES-2026-098 (ALASNITRO-ENCLAVES-2026-098)

The version of containerd installed on the remote host is prior to 2.1.7-1. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2NITRO-ENCLAVES-2026-098 advisory. Arithmetic over induction variables in loops were not correctly checked for underflow or overflow in the G...