RHSA-2026:93449: Important: libXtst security update

Published Nov 2, 2026

Updated

X.Org X11 libXtst runtime librarySecurity Fix(es): libXtst: libXtst: Denial of Service via out-of-bounds read in RECORD reply parser (CVE-2026-94286) 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

0 affected components

Event History

Nov 2, 2026

Advisory Published

via Red Hat·12:00 AM

Data Sourced

via Red Hat·12:00 AM

RemedyDescriptionAffected Software

Frequently Asked Questions

What access or capability does an attacker need to trigger the denial of service?

The available advisory information does not specify the attacker’s required access, privileges, or delivery mechanism. It identifies the affected component as the libXtst RECORD reply parser and the issue as an out-of-bounds read that can cause denial of service.

Are default installations affected?

The advisory does not state whether a default installation or configuration is affected. Exposure depends on use of the X.Org X11 libXtst runtime library and the vulnerable RECORD reply parsing functionality.

What mitigation is available if the update cannot be applied immediately?

No workaround or temporary mitigation is provided in the advisory data. The described remediation is the security update in RHSA-2026:93449.

RHSA-2026:93449: Important: libXtst security update

Affected Software

Event History

Frequently Asked Questions

What access or capability does an attacker need to trigger the denial of service?

Are default installations affected?

What mitigation is available if the update cannot be applied immediately?

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Resources

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Frequently Asked Questions

What access or capability does an attacker need to trigger the denial of service?

Are default installations affected?

What mitigation is available if the update cannot be applied immediately?