Invalid Memory Access in Sentencepiece,

{
  "id": "1139e429df4db14449393081d6943ab32ffa8aaf32f0261f4c87689dd03cd8f3",
  "url": "https://osv.dev/vulnerability/CVE-2026-1260",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Invalid Memory Access in Sentencepiece,",
    "summary": "Invalid memory access in Sentencepiece versions less than 0.2.1 when using a vulnerable model file, which is not created in the normal training procedure.",
    "evidence": "osv:CVE-2026-1260",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-1260",
      "aliases": [
        "CVE-2026-1260",
        "GHSA-38vq-g6vr-w8wf",
        "PYSEC-2026-1909"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/google/sentencepiece",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "31646a467d2051eb904e0b45de3a73e91fe1c1e3"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "0.2.1"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "VersionTextExtraction"
                  },
                  {
                    "range": [
                      {
                        "fixed": "31646a467d2051eb904e0b45de3a73e91fe1c1e3"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v0.2.1"
                  },
                  {
                    "cpe": "cpe:2.3:a:google:sentencepiece:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "0.2.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v0.2.1pre2",
            "v0.2.1pre1",
            "0.2.1pre1",
            "v0.2.0",
            "v0.2.0pre1",
            "v0.1.99",
            "v0.1.99pre1",
            "v0.1.98",
            "v0.1.98pre1",
            "v0.1.97",
            "v0.1.96",
            "v0.1.95",
            "v0.1.94",
            "v0.1.93",
            "v0.1.92",
            "v0.1.91",
            "v0.1.90",
            "v0.1.9",
            "v0.1.86",
            "v0.1.85",
            "v0.1.84",
            "v0.1.83",
            "v0.1.82",
            "v0.1.81",
            "v0.1.8",
            "v0.1.7",
            "v0.1.6pre1",
            "v0.1.6",
            "v0.1.5",
            "v0.1.4"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-1260.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:23.534882141Z",
      "provider": "osv",
      "references": [
        "https://github.com/google/sentencepiece/releases/tag/v0.2.1",
        "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-1260.json",
        "https://access.redhat.com/errata/RHSA-2026:3713",
        "https://access.redhat.com/errata/RHSA-2026:3782",
        "https://access.redhat.com/security/cve/CVE-2026-1260",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/1xxx/CVE-2026-1260.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-1260",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2432079"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-119"
        ],
        "cna_assigner": "Google",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/1xxx/CVE-2026-1260.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-1260",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 490010,
  "published_at": "2026-01-22T17:06:17.34+00:00"
}