GHSA-8RPW-4XX7-27W7

Vulnerability from github – Published: 2026-06-30 15:30 – Updated: 2026-08-11 12:30
VLAI
Details

A flaw was found in GLib. A state confusion issue exists in g_dbus_node_info_new_for_xml() in the gio/gdbusintrospection.c file when processing malformed D-Bus introspection XML, specifically with a element nested within other elements like , , or . This issue can cause an unsigned integer overflow and lead to an out-of-bounds read, resulting in a denial of service.

Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2026-58016"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-191"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-30T13:19:17Z",
    "severity": "HIGH"
  },
  "details": "A flaw was found in GLib. A state confusion issue exists in g_dbus_node_info_new_for_xml() in the gio/gdbusintrospection.c file when processing malformed D-Bus introspection XML, specifically with a \u003cnode\u003e element nested within other elements like \u003cmethod\u003e, \u003csignal\u003e, \u003cproperty\u003e or \u003carg\u003e. This issue can cause an unsigned integer overflow and lead to an out-of-bounds read, resulting in a denial of service.",
  "id": "GHSA-8rpw-4xx7-27w7",
  "modified": "2026-08-11T12:30:22Z",
  "published": "2026-06-30T15:30:45Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-58016"
    },
    {
      "type": "WEB",
      "url": "https://gitlab.gnome.org/GNOME/glib/-/issues/3932"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492257"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2026-58016"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:53371"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:51185"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:51184"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:51183"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:51182"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:51181"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:51177"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:51176"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:51175"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:49512"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:46836"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:44481"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:42090"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:42089"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:42063"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}



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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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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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