RHSA-2026:97219 - Security Advisory

Topic

An update for freerdp is now available for Red Hat Enterprise Linux 10.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. The xfreerdp client can connect to RDP servers such as Microsoft Windows machines, xrdp, and VirtualBox.

Security Fix(es):

• freerdp: FreeRDP: Denial of Service via endless blocking loop in Stream_EnsureCapacity (CVE-2026-27951)

Bug Fix(es) and Enhancement(s):

• Update freerdp to the latest upstream stable release (JIRA:RHEL-80426)
• FreeRDP does not create context for hostnames longer than 31 characters (JIRA:RHEL-143809)
• SSL warnings under FIPS (JIRA:RHEL-140202)
• [RFE] Add RDP Smart Card Redirection Support (MS?RDPESC) to Enable Remote (Virtualized) SmartCard?Based PKINIT Authentication (JIRA:RHEL-171999)

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.

Additional Changes:

For detailed information on changes in this release, see the Red Hat Enterprise Linux 10 Release Notes linked from the References section.

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Affected Products

• Red Hat Enterprise Linux for x86_64 10 x86_64
• Red Hat Enterprise Linux for IBM z Systems 10 s390x
• Red Hat Enterprise Linux for Power, little endian 10 ppc64le
• Red Hat Enterprise Linux for ARM 64 10 aarch64
• Red Hat CodeReady Linux Builder for x86_64 10 x86_64
• Red Hat CodeReady Linux Builder for Power, little endian 10 ppc64le
• Red Hat CodeReady Linux Builder for ARM 64 10 aarch64
• Red Hat CodeReady Linux Builder for IBM z Systems 10 s390x

Fixes

• BZ - 2442783 - CVE-2026-27951 freerdp: FreeRDP: Denial of Service via endless blocking loop in Stream_EnsureCapacity
• RHEL-80426 - Update freerdp to the latest upstream stable release

CVEs

• CVE-2026-27951

References

• https://access.redhat.com/security/updates/classification/#moderate
• https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/10/html/10.3_release_notes/index