Security advisory

{
  "id": "ad23df26eecd67a59ece0c5532e36887a091342d4cfaaf1ce54bad195590de60",
  "url": "https://osv.dev/vulnerability/CVE-2021-26951",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-26951",
    "summary": "An issue was discovered in the calamine crate before 0.17.0 for Rust. It allows attackers to overwrite heap-memory locations because Vec::set_len is used without proper memory claiming, and this uninitialized memory is used for a user-provided Read operation, as demonstrated by Sectors::get.",
    "evidence": "osv:CVE-2021-26951",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2021-26951",
      "aliases": [
        "CVE-2021-26951",
        "GHSA-ppqp-78xx-3r38",
        "RUSTSEC-2021-0015"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/tafia/calamine",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "d71da2406c52869a8081f69aabeceed8fc1fcb75"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:calamine_project:calamine:*:*:*:*:*:rust:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "0.17.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v0.16.2",
            "v0.16.1",
            "v0.16.0",
            "v0.15.6",
            "v0.15.5",
            "v0.15.4",
            "v0.15.0",
            "v0.14.8",
            "v0.14.7",
            "v0.14.6",
            "v0.14.4",
            "v0.14.3",
            "v0.14.2",
            "v0.14.1",
            "v0.14",
            "v0.13.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-26951.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:53.792365055Z",
      "provider": "osv",
      "references": [
        "https://rustsec.org/advisories/RUSTSEC-2021-0015.html"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-26951",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 438011,
  "published_at": "2021-02-09T23:15:13.663+00:00"
}