RHSA-2026:98448: Important: skopeo security update

Published Nov 11, 2026
·
Updated

The skopeo command lets you inspect images from container image registries, get images and image layers, and use signatures to create and verify files. Security Fix(es): net/mail: golang: net/mail: Denial of Service via pathological email address parsing (CVE-2026-42499) encoding/asn1: golang: Go encoding/asn1: Denial of Service via excessive recursion in Unmarshal (CVE-2026-33818) net/url: golang: golang net/url: Denial of Service from quadratic complexity in path resolution (CVE-2026-56860) net/http: golang: Go net/http: Unencrypted HTTP/2 connections vulnerable to Denial of Service (CVE-2026-56853) html/template: golang: Go html/template: Cross-Site Scripting via pathological input (CVE-2026-56858) crypto/tls: golang: 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.

Affected Software

16 affected componentsFixes available
redhat/skopeo<1.22.2-5.el9_9
1.22.2-5.el9_9
redhat/skopeo<1.22.2-5.el9_9
1.22.2-5.el9_9
redhat/skopeo-debuginfo<1.22.2-5.el9_9
1.22.2-5.el9_9
redhat/skopeo-debugsource<1.22.2-5.el9_9
1.22.2-5.el9_9
redhat/skopeo-tests<1.22.2-5.el9_9
1.22.2-5.el9_9
redhat/skopeo-debuginfo<1.22.2-5.el9_9
1.22.2-5.el9_9
redhat/skopeo-debugsource<1.22.2-5.el9_9
1.22.2-5.el9_9
redhat/skopeo-tests<1.22.2-5.el9_9
1.22.2-5.el9_9
redhat/skopeo<1.22.2-5.el9_9
1.22.2-5.el9_9
redhat/skopeo-debuginfo<1.22.2-5.el9_9
1.22.2-5.el9_9
redhat/skopeo-debugsource<1.22.2-5.el9_9
1.22.2-5.el9_9
redhat/skopeo-tests<1.22.2-5.el9_9
1.22.2-5.el9_9
redhat/skopeo<1.22.2-5.el9_9.aa
1.22.2-5.el9_9.aa
redhat/skopeo-debuginfo<1.22.2-5.el9_9.aa
1.22.2-5.el9_9.aa
redhat/skopeo-debugsource<1.22.2-5.el9_9.aa
1.22.2-5.el9_9.aa
redhat/skopeo-tests<1.22.2-5.el9_9.aa
1.22.2-5.el9_9.aa

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade redhat/skopeo to a version that resolves this vulnerability.

    Fixed in 1.22.2-5.el9_9
  2. Upgrade

    Upgrade redhat/skopeo-debuginfo to a version that resolves this vulnerability.

    Fixed in 1.22.2-5.el9_9
  3. Upgrade

    Upgrade redhat/skopeo-debugsource to a version that resolves this vulnerability.

    Fixed in 1.22.2-5.el9_9
  4. Upgrade

    Upgrade redhat/skopeo-tests to a version that resolves this vulnerability.

    Fixed in 1.22.2-5.el9_9
  5. Upgrade

    Upgrade redhat/skopeo to a version that resolves this vulnerability.

    Fixed in 1.22.2-5.el9_9.aa
  6. Upgrade

    Upgrade redhat/skopeo-debuginfo to a version that resolves this vulnerability.

    Fixed in 1.22.2-5.el9_9.aa
  7. Upgrade

    Upgrade redhat/skopeo-debugsource to a version that resolves this vulnerability.

    Fixed in 1.22.2-5.el9_9.aa
  8. Upgrade

    Upgrade redhat/skopeo-tests to a version that resolves this vulnerability.

    Fixed in 1.22.2-5.el9_9.aa

Event History

Nov 11, 2026
Advisory Published
via Red Hat·12:00 AM
Data Sourced
via Red Hat·12:00 AM
RemedyDescriptionAffected Software

Contact

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