Security advisory

{
  "id": "c0a1eea6149d52abd1cc298dd97a5126d7ad8277d493bc6d7888e526ea3aeee7",
  "url": "https://osv.dev/vulnerability/CVE-2020-36317",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-36317",
    "summary": "In the standard library in Rust before 1.49.0, String::retain() function has a panic safety problem. It allows creation of a non-UTF-8 Rust string when the provided closure panics. This bug could result in a memory safety violation when other string APIs assume that UTF-8 encoding is used on the same string.",
    "evidence": "osv:CVE-2020-36317",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2020-36317",
      "aliases": [
        "CVE-2020-36317"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/rust-lang/rust",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "e1884a8e3c3e813aada8254edfa120e85bf5ffca"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:rust-lang:rust:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.49.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "1.0.0-beta",
            "1.0.0-alpha.2",
            "1.0.0-alpha",
            "0.9",
            "0.8",
            "release-0.7",
            "0.7",
            "release-0.6",
            "0.6",
            "release-0.5",
            "0.5",
            "release-0.4",
            "0.4",
            "release-0.2",
            "0.2",
            "release-0.1",
            "0.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-36317.json"
          }
        }
      ],
      "modified": "2026-10-24T10:50:06.354257683Z",
      "provider": "osv",
      "references": [
        "https://github.com/rust-lang/rust/issues/78498",
        "https://github.com/rust-lang/rust/pull/78499"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:a:rust-lang:rust:*:*:*:*:*:*:*:*"
            ],
            "vendor_product": "rust-lang:rust",
            "extracted_events": [
              {
                "range": [
                  {
                    "fixed": "1.49.0"
                  }
                ],
                "source": "CPE_RANGE"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2020-36317",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 441960,
  "published_at": "2021-04-11T20:15:12.39+00:00"
}