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VULNERABILITIES

CVE-2026-34003 Details

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

CVSS 3.x Severity and Vector Strings:

CNA: redhat-SADPCVSS-B:7.8 HIGHVector:CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://access.redhat.com/errata/RHSA-2026:10739 redhat-SADP
https://access.redhat.com/errata/RHSA-2026:11352 redhat-SADP
https://access.redhat.com/errata/RHSA-2026:11369 redhat-SADP
https://access.redhat.com/errata/RHSA-2026:11388 redhat-SADP
https://access.redhat.com/errata/RHSA-2026:11656 redhat-SADP

see all 75 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-125Out-of-bounds Readredhat-SADP
CWE-125Out-of-bounds Read[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

28 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-34003
NVD Published Date:
Apr 23, 2026
NVD Last Modified:
Jul 15, 2026
Source:
[email protected]