Security advisory

{
  "id": "b1a62ec85f18438e9868d139b16e646d4a49b5475e0480dea949b96eb3521e3a",
  "url": "https://osv.dev/vulnerability/CVE-2026-56136",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2026-56136",
    "summary": "In NTFS-3G through 2026.2.25, an out-of-bounds read exists in ntfs_ir_nill() in libntfs-3g/index.c that allows an attacker to read possibly confidential information in an ntfs-3g process by crafting a malicious NTFS image. This read operation is triggered by creation of a file with a crafted name.",
    "evidence": "osv:CVE-2026-56136",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-56136",
      "aliases": [
        "CVE-2026-56136",
        "GHSA-r66g-c39x-cw95"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/tuxera/ntfs-3g",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "d327833ec1d5eb1358b6f2c37139f10a3460944d"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "3G"
                      },
                      {
                        "last_affected": "2026.2.25"
                      }
                    ],
                    "source": "DESCRIPTION"
                  },
                  {
                    "cpe": "cpe:2.3:a:tuxera:ntfs-3g:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2026.7.7"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "2026.2.25",
            "2022.10.3",
            "2022.5.17",
            "2021.8.22",
            "2021.8.14",
            "2021.5.19",
            "2017.3.23",
            "2017.2.15",
            "2016.2.22",
            "2016.2.15",
            "2015.3.14",
            "2015.3.13",
            "2015.3.5",
            "2014.2.15",
            "v2013_1_13",
            "v2012_1_15",
            "v2011_10_9_RC",
            "v2011_4_12",
            "v2011_4_11",
            "v2011_4_10",
            "v2011_3_28_RC",
            "v2011_3_26",
            "2011_3_26",
            "N2010_10_2",
            "N2010_8_8",
            "N2010_7_23_RC",
            "N2010_6_31_RC",
            "N2010_6_30_RC",
            "N2010_5_22",
            "N2010_5_16",
            "N2010_2_6",
            "R2009_10_5_RC",
            "N2009_10_03_104125",
            "N2009_10_03_095644",
            "PERMISSION_HANDLING_BASE_20070925",
            "N1_913",
            "N1_910_RC",
            "N1_826",
            "N1_810",
            "N1_710",
            "N1_616",
            "N1_612_RC",
            "N1_516",
            "N1_417",
            "N1_416",
            "N1_411_RC",
            "N1_328",
            "N1_320_RC",
            "N1_0",
            "N0_20070207_RC1",
            "N0_20070118_BETA",
            "N0_20070116_BETA",
            "N0_20070102_BETA",
            "N0_20061218_BETA",
            "N0_20061212_BETA",
            "N2006_11_14_220946",
            "N0_20061115_BETA",
            "N2006_11_14_010037",
            "N2006_11_11_220751",
            "N2006_11_11_013125",
            "N2006_11_11_010308",
            "N2006_11_11_005720",
            "N2006_11_08_233131",
            "N2006_11_08_220332",
            "N2006_11_07_011225",
            "N0_20061031_BETA",
            "start"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-56136.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:24.160359828Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/56xxx/CVE-2026-56136.json",
        "https://github.com/tuxera/ntfs-3g/security/advisories/GHSA-r66g-c39x-cw95",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-56136"
      ],
      "provider_metadata": {
        "cna_assigner": "mitre",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/56xxx/CVE-2026-56136.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-56136",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 490539,
  "published_at": "2026-08-24T00:00:00+00:00"
}