RHSA-2026:42080HighCVSS 8.2

Red Hat Security Advisory: Red Hat Ansible Automation Platform 2.7 Product Security and Bug Fix Update

Published
July 20, 2026
Last Modified
September 15, 2026

🔗 CVE IDs covered (4)

CVE-2026-11332 →CVE-2026-27136 →CVE-2026-27145 →CVE-2026-39821 →

📋 Description

CVE-2026-11332 — ansible-core: argument injection in ansible-galaxy role install leads to arbitrary code execution CVE-2026-27136 — golang.org/x/net/html: golang: golang.org/x/net/html: Cross-Site Scripting via HTML parsing bypass CVE-2026-27145 — crypto/x509: golang: golang crypto/x509: Denial of Service via excessive processing of DNS SAN entries CVE-2026-39821 — golang.org/x/net/idna: golang: net/http: golang.org/x/net/idna: Privilege escalation via incorrect Punycode label processing

🎯 Affected products68

  • Red Hat Ansible Automation Platform 2.7 for RHEL 10
  • Red Hat Ansible Automation Platform 2.7 for RHEL 9
  • ansible-builder-0:3.1.1-3.1.el10ap.noarch as a component of Red Hat Ansible Automation Platform 2.7 for RHEL 10
  • ansible-builder-0:3.1.1-3.1.el10ap.src as a component of Red Hat Ansible Automation Platform 2.7 for RHEL 10
  • ansible-builder-0:3.1.1-3.1.el9ap.noarch as a component of Red Hat Ansible Automation Platform 2.7 for RHEL 9
  • ansible-builder-0:3.1.1-3.1.el9ap.src as a component of Red Hat Ansible Automation Platform 2.7 for RHEL 9
  • ansible-core-1:2.16.19-1.el9ap.noarch as a component of Red Hat Ansible Automation Platform 2.7 for RHEL 9
  • ansible-core-1:2.16.19-1.el9ap.src as a component of Red Hat Ansible Automation Platform 2.7 for RHEL 9
  • ansible-core-2:2.16.19-1.el10ap.noarch as a component of Red Hat Ansible Automation Platform 2.7 for RHEL 10
  • ansible-core-2:2.16.19-1.el10ap.src as a component of Red Hat Ansible Automation Platform 2.7 for RHEL 10
  • ansible-creator-0:26.6.1-2.el10ap.noarch as a component of Red Hat Ansible Automation Platform 2.7 for RHEL 10
  • ansible-creator-0:26.6.1-2.el10ap.src as a component of Red Hat Ansible Automation Platform 2.7 for RHEL 10
  • ansible-creator-0:26.6.1-2.el9ap.noarch as a component of Red Hat Ansible Automation Platform 2.7 for RHEL 9
  • ansible-creator-0:26.6.1-2.el9ap.src as a component of Red Hat Ansible Automation Platform 2.7 for RHEL 9
  • ansible-dev-environment-0:26.6.1-1.el10ap.noarch as a component of Red Hat Ansible Automation Platform 2.7 for RHEL 10
  • ansible-dev-environment-0:26.6.1-1.el10ap.src as a component of Red Hat Ansible Automation Platform 2.7 for RHEL 10
  • ansible-dev-environment-0:26.6.1-1.el9ap.noarch as a component of Red Hat Ansible Automation Platform 2.7 for RHEL 9
  • ansible-dev-environment-0:26.6.1-1.el9ap.src as a component of Red Hat Ansible Automation Platform 2.7 for RHEL 9
  • ansible-dev-tools+server-0:26.7.1-1.el10ap.noarch as a component of Red Hat Ansible Automation Platform 2.7 for RHEL 10
  • ansible-dev-tools+server-0:26.7.1-1.el9ap.noarch as a component of Red Hat Ansible Automation Platform 2.7 for RHEL 9
  • ansible-dev-tools-0:26.7.1-1.el10ap.noarch as a component of Red Hat Ansible Automation Platform 2.7 for RHEL 10
  • ansible-dev-tools-0:26.7.1-1.el10ap.src as a component of Red Hat Ansible Automation Platform 2.7 for RHEL 10
  • ansible-dev-tools-0:26.7.1-1.el9ap.noarch as a component of Red Hat Ansible Automation Platform 2.7 for RHEL 9
  • ansible-dev-tools-0:26.7.1-1.el9ap.src as a component of Red Hat Ansible Automation Platform 2.7 for RHEL 9
  • ansible-lint-0:26.6.0-1.el10ap.noarch as a component of Red Hat Ansible Automation Platform 2.7 for RHEL 10
  • ansible-lint-0:26.6.0-1.el10ap.src as a component of Red Hat Ansible Automation Platform 2.7 for RHEL 10
  • ansible-lint-0:26.6.0-1.el9ap.noarch as a component of Red Hat Ansible Automation Platform 2.7 for RHEL 9
  • ansible-lint-0:26.6.0-1.el9ap.src as a component of Red Hat Ansible Automation Platform 2.7 for RHEL 9
  • ansible-navigator-0:26.6.0-2.el10ap.noarch as a component of Red Hat Ansible Automation Platform 2.7 for RHEL 10
  • ansible-navigator-0:26.6.0-2.el10ap.src as a component of Red Hat Ansible Automation Platform 2.7 for RHEL 10
  • +38 more not shown

✅ Remediation

For details on how to apply this update, refer to Ansible Automation Platform documentation. Workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability. Workaround: A flaw was found in the Go standard library crypto/x509 package. When verifying a TLS certificate hostname, VerifyHostname processed each DNS Subject Alternative Name (SAN) entry in a loop and repeatedly split the candidate hostname on "." characters. For certificates with a very large DNS SAN list, CPU use could grow quadratically with the number of SAN entries and hostname labels. Because hostname verification runs before the certificate chain is built, this overhead can occur even when the certificate is not trusted. Red Hat rates this issue as Important. It affects Red Hat products that include the Go standard library crypto/x509 code from an affected Go toolchain version (before Go 1.25.11, or from Go 1.26.0 through Go 1.26.3). Applications and container images built with a fixed Go release (1.25.11 or later, or 1.26.4 or later) are not affected. Community distributions such as Fedora are also affected. Upstream fix: Go 1.25.11 and Go 1.26.4 (GO-2026-5037). Workaround: Upgrade to a fixed golang.org/x/net release that includes the idna correction, via updated golang or dependent package rebuilds.

🔗 References (9)