RHSA-2026:98556: Important: skopeo security, bug fix, and enhancement update
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): 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) Bug Fix(es) and Enhancement(s): sequoia disabled in skopeo (JIRA:RHEL-258200) 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
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
redhat/skopeoto a version that resolves this vulnerability.Fixed in 1.24.0-3.el10_3 - Upgrade
Upgrade
redhat/skopeo-debuginfoto a version that resolves this vulnerability.Fixed in 1.24.0-3.el10_3 - Upgrade
Upgrade
redhat/skopeo-debugsourceto a version that resolves this vulnerability.Fixed in 1.24.0-3.el10_3 - Upgrade
Upgrade
redhat/skopeo-teststo a version that resolves this vulnerability.Fixed in 1.24.0-3.el10_3 - Upgrade
Upgrade
redhat/skopeoto a version that resolves this vulnerability.Fixed in 1.24.0-3.el10_3.aa - Upgrade
Upgrade
redhat/skopeo-debuginfoto a version that resolves this vulnerability.Fixed in 1.24.0-3.el10_3.aa - Upgrade
Upgrade
redhat/skopeo-debugsourceto a version that resolves this vulnerability.Fixed in 1.24.0-3.el10_3.aa - Upgrade
Upgrade
redhat/skopeo-teststo a version that resolves this vulnerability.Fixed in 1.24.0-3.el10_3.aa - Configuration
Disable sequoia in skopeo.
skopeo sequoia = disabled
Event History
Frequently Asked Questions
Which package builds are covered by this advisory?
The advisory covers redhat/skopeo, redhat/skopeo-debuginfo, redhat/skopeo-debugsource, and redhat/skopeo-tests.
What is the status of Sequoia in this update?
Sequoia is disabled in skopeo as part of this update.