CVE-2026-67215 affecting package libglvnd 1.7.0-3

{
  "id": "a257a02ee8bb9466602966c5e133c917d3b4407b0706df4b6c45568030ef9441",
  "url": "https://osv.dev/vulnerability/AZL-94437",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2026-67215 affecting package libglvnd 1.7.0-3",
    "summary": "cJSON through 1.7.19 is vulnerable to uncontrolled recursion leading to stack exhaustion when an untrusted RFC 6902 JSON Patch is applied via cJSONUtils_ApplyPatches() or cJSONUtils_ApplyPatchesCaseSensitive(). A patch containing add and copy operations grafts duplicated subtrees to amplify document depth beyond the parser's nesting limit: cJSON_Delete() recurses with no depth bound, and the cJSON_Duplicate() guard CJSON_CIRCULAR_LIMIT is set to 10000, ten times the parser's 1000-level nesting limit and high enough to overflow a default thread stack. An attacker who can supply the patch document can crash the process, resulting in denial of service.",
    "evidence": "osv:AZL-94437",
    "products": [
      {
        "name": {
          "value": "libglvnd",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "AZL-94437",
      "aliases": [
        "AZL-94437"
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "1.7.0-3"
                }
              ]
            }
          ],
          "package": {
            "name": "libglvnd",
            "purl": "pkg:rpm/azure-linux/libglvnd",
            "ecosystem": "Azure Linux:3"
          },
          "database_specific": {
            "source": "https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-94437.json"
          }
        }
      ],
      "modified": "2026-10-15T05:37:09Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-67215"
      ],
      "references": [
        "https://nvd.nist.gov/vuln/detail/CVE-2026-67215"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-67215",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 321526,
  "published_at": "2026-07-29T14:16:35+00:00"
}