RHSA-2026:99826: Important: rhc security update
rhc is a client tool and daemon that connects the system to Red Hat hosted services enabling system and subscription management.Security Fix(es): golang.org/x/text: golang.org/x/text: Denial of Service via invalid UTF-8 input (CVE-2026-56852) google.golang.org/grpc: gRPC-Go: Denial of Service via malformed RPC requests (CVE-2026-84445) 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/rhcto a version that resolves this vulnerability.Fixed in 0.2.4-5.el7_9.2
Event History
Frequently Asked Questions
Which systems should prioritize this update?
Systems with the rhc client tool or daemon deployed should prioritize the update, particularly where rhc is used to connect systems to Red Hat hosted services for system or subscription management.
What types of input are associated with the reported denial-of-service issues?
The reported issues involve invalid UTF-8 input in golang.org/x/text and malformed RPC requests in gRPC-Go. The provided information identifies denial of service as the impact but does not specify required network exposure or authentication conditions.