RHSA-2026:70641 — Security Advisory

An update for skopeo is now available for Red Hat Enterprise Linux 9.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

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.