GHSA-7QJX-378M-P8HM

Vulnerability from github – Published: 2025-02-25 18:31 – Updated: 2026-06-02 06:30
VLAI
Details

A buffer overflow flaw was found in X.Org and Xwayland. If XkbChangeTypesOfKey() is called with a 0 group, it will resize the key symbols table to 0 but leave the key actions unchanged. If the same function is later called with a non-zero value of groups, this will cause a buffer overflow because the key actions are of the wrong size.

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-2025-26597"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-119",
      "CWE-122"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-25T16:15:38Z",
    "severity": "HIGH"
  },
  "details": "A buffer overflow flaw was found in X.Org and Xwayland. If XkbChangeTypesOfKey() is called with a 0 group, it will resize the key symbols table to 0 but leave the key actions unchanged. If the same function is later called with a non-zero value of groups, this will cause a buffer overflow because the key actions are of the wrong size.",
  "id": "GHSA-7qjx-378m-p8hm",
  "modified": "2026-06-02T06:30:25Z",
  "published": "2025-02-25T18:31:24Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-26597"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/02/msg00036.html"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2345255"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2025-26597"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:7458"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:7165"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:7163"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:3976"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:2880"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:2879"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:2875"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:2874"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:2873"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:2866"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:2865"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:2862"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:2861"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:2502"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:2500"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/06/02/1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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Nomenclature

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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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