GHSA-5MQR-3465-C7P6

Vulnerability from github – Published: 2026-04-23 18:33 – Updated: 2026-06-05 03:31
VLAI
Details

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.

Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2026-34003"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-125"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-04-23T16:16:24Z",
    "severity": "HIGH"
  },
  "details": "A flaw was found in the X.Org X server\u0027s 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.",
  "id": "GHSA-5mqr-3465-c7p6",
  "modified": "2026-06-05T03:31:30Z",
  "published": "2026-04-23T18:33:03Z",
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}


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Nomenclature

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