UBUNTU-CVE-2026-92822 (CVE-2026-92822)

Vulnerability from osv_ubuntu – Published: 2026-10-21 04:18 – Updated: 2026-10-28 17:46 – Source website
VLAI
Details

A flaw was found in libmodulemd. When parsing module metadata, the xmd field is converted into nested GVariant values through recursive YAML mapping and sequence helpers without a recursion-depth or node-count limit. An attacker who can supply crafted modulemd YAML with deeply nested xmd content can cause stack exhaustion or excessive resource consumption, resulting in a denial of service.

Severity
6.2 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "gir1.2-modulemd-2.0",
            "binary_version": "2.13.0-1"
          },
          {
            "binary_name": "libmodulemd-tools",
            "binary_version": "2.13.0-1"
          },
          {
            "binary_name": "libmodulemd2",
            "binary_version": "2.13.0-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "libmodulemd",
        "purl": "pkg:deb/ubuntu/libmodulemd@2.13.0-1?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.12.0-1",
        "2.13.0-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "gir1.2-modulemd-2.0",
            "binary_version": "2.14.0-3build2"
          },
          {
            "binary_name": "libmodulemd-tools",
            "binary_version": "2.14.0-3build2"
          },
          {
            "binary_name": "libmodulemd2",
            "binary_version": "2.14.0-3build2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "libmodulemd",
        "purl": "pkg:deb/ubuntu/libmodulemd@2.14.0-3build2?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.14.0-3",
        "2.14.0-3build1",
        "2.14.0-3build2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "gir1.2-modulemd-2.0",
            "binary_version": "2.15.3-1"
          },
          {
            "binary_name": "libmodulemd-tools",
            "binary_version": "2.15.3-1"
          },
          {
            "binary_name": "libmodulemd2",
            "binary_version": "2.15.3-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.10",
        "name": "libmodulemd",
        "purl": "pkg:deb/ubuntu/libmodulemd@2.15.3-1?arch=source\u0026distro=stonking"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.15.2-3",
        "2.15.2-4",
        "2.15.3-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "gir1.2-modulemd-2.0",
            "binary_version": "2.15.2-3"
          },
          {
            "binary_name": "libmodulemd-tools",
            "binary_version": "2.15.2-3"
          },
          {
            "binary_name": "libmodulemd2",
            "binary_version": "2.15.2-3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "libmodulemd",
        "purl": "pkg:deb/ubuntu/libmodulemd@2.15.2-3?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.15.0-1",
        "2.15.2-1",
        "2.15.2-3"
      ]
    }
  ],
  "aliases": [],
  "details": "A flaw was found in libmodulemd. When parsing module metadata, the xmd field is converted into nested GVariant values through recursive YAML mapping and sequence helpers without a recursion-depth or node-count limit. An attacker who can supply crafted modulemd YAML with deeply nested xmd content can cause stack exhaustion or excessive resource consumption, resulting in a denial of service.",
  "id": "UBUNTU-CVE-2026-92822",
  "modified": "2026-10-28T17:46:02Z",
  "published": "2026-10-21T04:18:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-92822"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-92822"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2479002"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-92822"
  ]
}



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