Issued at: 2026-09-24
Updated at: 2026-09-24
Advisory content derived from Red Hat RHSA-2026:70641, © Red Hat, Inc., used under CC BY 4.0, with modifications.
Synopsis
Important: skopeo security update
Description
Command line utility to inspect images and repositories directly on Docker registries without the need to pull them.
Security Fix(es):
* skopeo: Go html/template: Cross-Site Scripting via pathological input (CVE-2026-56858)
* skopeo: Go encoding/asn1: Denial of Service via excessive recursion in Unmarshal (CVE-2026-33818)
* skopeo: golang net/url: Denial of Service from quadratic complexity in path resolution (CVE-2026-56860)
* skopeo: Go net/http: Unencrypted HTTP/2 connections vulnerable to Denial of Service (CVE-2026-56853)
* skopeo: Golang crypto/tls: Denial of Service via indefinite KeyUpdate messages (CVE-2026-56862)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.