Security advisory

{
  "id": "8dc546fd160ad7a9ff00cd16a0c5610ad367eb813f46eb29a2aec6051d023f53",
  "url": "https://osv.dev/vulnerability/CVE-2026-110734",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2026-110734",
    "summary": "Godot Engine through 4.7.2 has a heap out-of-bounds write in the Radiance HDR (.hdr) image decoder (modules/hdr/image_loader_hdr.cpp). The run-length decoding loop expands RLE instructions read from the file into a buffer sized from the image dimensions, without validating that an instruction's repeat/copy count fits the remaining capacity of the row buffer. A crafted .hdr file therefore writes attacker-supplied bytes past the end of the heap allocation, with the overflow length and content controlled by the file. The defect is reached automatically when the product imports a crafted .hdr (e.g., when opening a project containing one), and at runtime in exported projects that load untrusted .hdr images. NOTE: the Supplier's position is that the research has identified \"no security issues\" because the required attacker access is outside of the current Godot Engine threat model.",
    "evidence": "osv:CVE-2026-110734",
    "products": [],
    "severity": "low",
    "structured": {
      "id": "CVE-2026-110734",
      "aliases": [
        "CVE-2026-110734"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/godotengine/godot",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "ed1daf0bf001b61586d9930840f2f1394092c079"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "3.0.0"
                      },
                      {
                        "last_affected": "4.7.2"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "4.7.2"
                      }
                    ],
                    "source": "DESCRIPTION"
                  }
                ]
              }
            }
          ],
          "versions": [
            "4.7.2-stable",
            "4.7.1-stable",
            "4.7-stable",
            "4.6-stable",
            "4.5-stable",
            "4.3-stable",
            "4.4-stable",
            "4.2-stable",
            "4.1-stable",
            "4.0-stable",
            "3.2-stable",
            "3.1-stable",
            "3.0-stable",
            "2.0-stable",
            "2.0-rc1",
            "2.0-beta",
            "1.1-rc3",
            "1.1-rc2",
            "1.1-rc1",
            "1.0-rc2"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-110734.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:38.433498783Z",
      "provider": "osv",
      "references": [
        "https://axeghost.offprint.app/a/3mvs6zo4blo23-three-memory-safety-bugs-in-godots-untrusted-file-parsers",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/110xxx/CVE-2026-110734.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-110734",
        "https://github.com/godotengine/godot/issues/123608",
        "https://github.com/godotengine/godot"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-787"
        ],
        "isDisputed": true,
        "cna_assigner": "mitre",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/110xxx/CVE-2026-110734.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-110734",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 505880,
  "published_at": "2026-10-14T15:36:08.839+00:00"
}