RLSA-2026:38504 Important: container-tools:rhel8 security update

The container-tools module contains tools for working with containers, notably podman, buildah, skopeo, and runc. Security Fixes: net: golang: Go net package: Denial of Service via long CNAME response in LookupCNAME CVE-2026-33811 golang.org/x/crypto/ssh: golang: golang.org/x/crypto/ssh: Denial o...

ALSA-2026:37410 Important: buildah security update

The buildah package provides a tool for facilitating building OCI container images. Among other things, buildah enables you to: Create a working container, either from scratch or using an image as a starting point; Create an image, either from a working container or using the instructions in a...

CVE-2025-66406

Step CA is an online certificate authority for secure, automated certificate management for DevOps. Prior to 0.29.0, there is an improper authorization check for SSH certificate revocation. This affects deployments configured with the SSHPOP provisioner. This vulnerability is fixed in 0.29.0...

GO-2025-4181 step-ca Has Improper Authorization Check for SSH Certificate Revocation in github.com/smallstep/certificates

step-ca Has Improper Authorization Check for SSH Certificate Revocation in github.com/smallstep/certificates...

Incorrect Authorization

Overview Affected versions of this package are vulnerable to Incorrect Authorization when validating SSH host certificate signatures. Due to a related issue in the processing of IsUserAuthority and IsHostAuthority by x/crypto/ssh, an attacker can gain unauthorized access by providing a signed SSH...

DEBIAN-CVE-2023-22742

libgit2 is a cross-platform, linkable library implementation of Git. When using an SSH remote with the optional libssh2 backend, libgit2 does not perform certificate checking by default. Prior versions of libgit2 require the caller to set the certificatecheck field of libgit2's gitremotecallbacks...