Riskcovery

CVE-2026-34003

Xorg: xwayland: x.org x server: information exposure and denial of service via out-of-bounds memory access

State
Published
Severity
7.8 High
Published
Apr 23, 2026
Updated
Jul 15, 2026
Reserved
Mar 25, 2026

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
3.17.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hredhat
3.17.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hredhat-SADP

Weaknesses

Affected Products

ProductVersions
Red Hat Enterprise Linux 10Red Hat
  • 0:24.1.5-6.el10_1 and laterNot affected
Red Hat Enterprise Linux 10Red Hat
  • 0:24.1.9-4.el10_2 and laterNot affected
Red Hat Enterprise Linux 10.0 Extended Update SupportRed Hat
  • 0:24.1.5-6.el10_0 and laterNot affected
Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSIONRed Hat
  • 0:1.1.0-25.el6_10.16 and laterNot affected
Red Hat Enterprise Linux 7 Extended Lifecycle SupportRed Hat
  • 0:1.20.4-34.el7_9 and laterNot affected
Red Hat Enterprise Linux 7 Extended Lifecycle SupportRed Hat
  • 0:1.8.0-36.el7_9.4 and laterNot affected
Red Hat Enterprise Linux 8Red Hat
  • 0:21.1.3-20.el8_10 and laterNot affected
Red Hat Enterprise Linux 8Red Hat
  • 0:1.20.11-28.el8_10 and laterNot affected
Red Hat Enterprise Linux 8Red Hat
  • 0:1.15.0-9.el8_10 and laterNot affected
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update SupportRed Hat
  • 0:1.20.10-4.el8_4 and laterNot affected
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update SupportRed Hat
  • 0:1.11.0-8.el8_4.15 and laterNot affected
Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-OnRed Hat
  • 0:1.20.10-4.el8_4 and laterNot affected
Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-OnRed Hat
  • 0:1.11.0-8.el8_4.15 and laterNot affected
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update SupportRed Hat
  • 0:21.1.3-2.el8_6.6 and laterNot affected
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update SupportRed Hat
  • 0:1.20.11-7.el8_6 and laterNot affected
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update SupportRed Hat
  • 0:1.12.0-6.el8_6.17 and laterNot affected
Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-OnRed Hat
  • 0:1.12.0-6.el8_6.17 and laterNot affected
Red Hat Enterprise Linux 8.6 Telecommunications Update ServiceRed Hat
  • 0:21.1.3-2.el8_6.6 and laterNot affected
Red Hat Enterprise Linux 8.6 Telecommunications Update ServiceRed Hat
  • 0:1.20.11-7.el8_6 and laterNot affected
Red Hat Enterprise Linux 8.6 Update Services for SAP SolutionsRed Hat
  • 0:21.1.3-2.el8_6.6 and laterNot affected
Red Hat Enterprise Linux 8.6 Update Services for SAP SolutionsRed Hat
  • 0:1.20.11-7.el8_6 and laterNot affected
Red Hat Enterprise Linux 8.8 Telecommunications Update ServiceRed Hat
  • 0:21.1.3-13.el8_8 and laterNot affected
Red Hat Enterprise Linux 8.8 Telecommunications Update ServiceRed Hat
  • 0:1.20.11-18.el8_8 and laterNot affected
Red Hat Enterprise Linux 8.8 Telecommunications Update ServiceRed Hat
  • 0:1.12.0-15.el8_8.17 and laterNot affected
Red Hat Enterprise Linux 8.8 Update Services for SAP SolutionsRed Hat
  • 0:21.1.3-13.el8_8 and laterNot affected
Red Hat Enterprise Linux 8.8 Update Services for SAP SolutionsRed Hat
  • 0:1.20.11-18.el8_8 and laterNot affected
Red Hat Enterprise Linux 8.8 Update Services for SAP SolutionsRed Hat
  • 0:1.12.0-15.el8_8.17 and laterNot affected
Red Hat Enterprise Linux 9Red Hat
  • 0:1.15.0-6.el9_7.1 and laterNot affected
Red Hat Enterprise Linux 9Red Hat
  • 0:23.2.7-6.el9_7 and laterNot affected
Red Hat Enterprise Linux 9Red Hat
  • 0:1.20.11-33.el9_7 and laterNot affected
Red Hat Enterprise Linux 9Red Hat
  • 0:1.15.0-7.el9_8.1 and laterNot affected
Red Hat Enterprise Linux 9Red Hat
  • 0:1.20.11-34.el9_8 and laterNot affected
Red Hat Enterprise Linux 9Red Hat
  • 0:24.1.9-4.el9_8 and laterNot affected
Red Hat Enterprise Linux 9.0 Update Services for SAP SolutionsRed Hat
  • 0:21.1.3-5.el9_0 and laterNot affected
Red Hat Enterprise Linux 9.0 Update Services for SAP SolutionsRed Hat
  • 0:1.20.11-13.el9_0 and laterNot affected
Red Hat Enterprise Linux 9.0 Update Services for SAP SolutionsRed Hat
  • 0:1.11.0-22.el9_0.17 and laterNot affected
Red Hat Enterprise Linux 9.2 Update Services for SAP SolutionsRed Hat
  • 0:21.1.3-10.el9_2 and laterNot affected
Red Hat Enterprise Linux 9.2 Update Services for SAP SolutionsRed Hat
  • 0:1.20.11-20.el9_2 and laterNot affected
Red Hat Enterprise Linux 9.2 Update Services for SAP SolutionsRed Hat
  • 0:1.12.0-14.el9_2.14 and laterNot affected
Red Hat Enterprise Linux 9.4 Extended Update SupportRed Hat
  • 0:1.20.11-28.el9_4 and laterNot affected
Red Hat Enterprise Linux 9.4 Extended Update SupportRed Hat
  • 0:22.1.9-8.el9_4 and laterNot affected
Red Hat Enterprise Linux 9.4 Extended Update SupportRed Hat
  • 0:1.13.1-8.el9_4.9 and laterNot affected
Red Hat Enterprise Linux 9.6 Extended Update SupportRed Hat
  • 0:1.20.11-33.el9_6 and laterNot affected
Red Hat Enterprise Linux 9.6 Extended Update SupportRed Hat
  • 0:23.2.7-6.el9_6 and laterNot affected
Red Hat Enterprise Linux 9.6 Extended Update SupportRed Hat
  • 0:1.14.1-10.el9_6 and laterNot affected
Red Hat Enterprise Linux 6Red Hat

    References

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