PT-2026-83135 · Alpaquita+5 · Buildah+28

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CVE-2026-56854

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Published

2026-08-28

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Updated

2026-09-11

CVSS v3.1

7.5

High

VectorAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Name of the Vulnerable Software and Affected Versions The product name cannot be determined (affected versions not specified)
Description A flaw exists where the source-address critical option in the Permissions returned by certain authentication callbacks is not validated against the client's remote address. This results in source-address restrictions being silently ignored when using the PasswordCallback, KeyboardInteractiveCallback, NoClientAuthCallback, and GSSAPIWithMICConfig.AllowLogin callbacks. The restriction was previously only enforced for PublicKeyCallback and VerifiedPublicKeyCallback paths.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Incorrect Authorization

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Weakness Enumeration

Related Identifiers

CVE-2026-56854
GO-2026-6303
OPENSUSE-SU-2026:11699-1
OPENSUSE-SU-2026:11727-1
OPENSUSE-SU-2026:11731-1
OPENSUSE-SU-2026:11732-1
OPENSUSE-SU-2026:11751-1
OPENSUSE-SU-2026:11752-1
OPENSUSE-SU-2026:21801-1
OPENSUSE-SU-2026:21812-1
OPENSUSE-SU-2026:21814-1
OPENSUSE-SU-2026:21816-1

Affected Products

Buildah
Calicoctl
Cilium-Cli
Kubernetes Containerd
Containerized-Data-Importer-1.65
Containerized-Data-Importer1.66
Docker
Docker-Cli-Buildx
Etcd
Golang-Go.Crypto
Golang.Org/X/Crypto
Golang.Org/X/Crypto/Ssh
Google-Guest-Agent
Google-Osconfig-Agent
Govulncheck-Vulndb
Grype
Hauler
Helm
Kubernetes
Kubevirt1.9
Lxd
Osv-Scanner
Podman
Rclone
Rootlesskit
Skopeo
Snapd
Trivy
Zk