RLSA-2026:98448: Important: skopeo security 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):
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
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
rocky-linux/skopeoto a version that resolves this vulnerability.Fixed in 3:1.22.2-5.el9_9 - Upgrade
Upgrade
rocky-linux/skopeo-debuginfoto a version that resolves this vulnerability.Fixed in 3:1.22.2-5.el9_9 - Upgrade
Upgrade
rocky-linux/skopeo-debugsourceto a version that resolves this vulnerability.Fixed in 3:1.22.2-5.el9_9 - Upgrade
Upgrade
rocky-linux/skopeo-teststo a version that resolves this vulnerability.Fixed in 3:1.22.2-5.el9_9
Event History
Child vulnerabilities
Contains the following vulnerabilities.
Frequently Asked Questions
Which package variants are included in this update?
The update covers rocky-linux/skopeo, rocky-linux/skopeo-debuginfo, rocky-linux/skopeo-debugsource, and rocky-linux/skopeo-tests.
Are all of the addressed issues denial-of-service vulnerabilities?
No. The advisory lists denial-of-service issues in several Go components and also an HTML template cross-site scripting issue (CVE-2026-56858).