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CVE-2026-34003 Detail

Description

A flaw was found in the X.Org X server's XKB key types request validation. A local attacker could send a specially crafted request to the X server, leading to an out-of-bounds memory access vulnerability. This could result in the disclosure of sensitive information or cause the server to crash, leading to a Denial of Service (DoS). In certain configurations, higher impact outcomes may be possible.


Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://access.redhat.com/errata/RHSA-2026:10739 Red Hat, Inc.
https://access.redhat.com/errata/RHSA-2026:11352 Red Hat, Inc.
https://access.redhat.com/errata/RHSA-2026:11369 Red Hat, Inc.
https://access.redhat.com/errata/RHSA-2026:11388 Red Hat, Inc.
https://access.redhat.com/errata/RHSA-2026:11656 Red Hat, Inc.
https://access.redhat.com/errata/RHSA-2026:11692 Red Hat, Inc.
https://access.redhat.com/security/cve/CVE-2026-34003 Red Hat, Inc.
https://bugzilla.redhat.com/show_bug.cgi?id=2451113 Red Hat, Inc.

Weakness Enumeration

CWE-ID CWE Name Source
CWE-125 Out-of-bounds Read Red Hat, Inc.  

Change History

7 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-34003
NVD Published Date:
04/23/2026
NVD Last Modified:
04/29/2026
Source:
Red Hat, Inc.