CVE-2026-34003

HIGH

7.8

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.

CVE Details

CVSS v3.1 Score7.8

SeverityHIGH

CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack VectorLOCAL

ComplexityLOW

Privileges RequiredLOW

User InteractionNONE

Published4/23/2026

Last Modified4/24/2026

Sourcenvd

Honeypot Sightings0

Weaknesses (CWE)

CWE-125

References

https://access.redhat.com/security/cve/CVE-2026-34003(secalert@redhat.com)

https://bugzilla.redhat.com/show_bug.cgi?id=2451113(secalert@redhat.com)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.