Security advisory

{
  "id": "62fd4a3b65957671bccf6c6cee6f26e40a46823f6b536dc702b1e0047756a433",
  "url": "https://osv.dev/vulnerability/CVE-2021-38186",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-38186",
    "summary": "An issue was discovered in the comrak crate before 0.10.1 for Rust. It mishandles & characters, leading to XSS via &# HTML entities.",
    "evidence": "osv:CVE-2021-38186",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2021-38186",
      "aliases": [
        "CVE-2021-38186",
        "GHSA-6wj2-g87r-pm62",
        "RUSTSEC-2021-0063"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/kivikakk/comrak",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "154479561c919e966ec24c0956e049fe5de68378"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:comrak_project:comrak:*:*:*:*:*:rust:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "0.10.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "0.10.1-rc.1",
            "0.10.0",
            "0.9.1",
            "0.9.0",
            "0.8.2",
            "0.8.1",
            "0.8.0",
            "0.7.1",
            "0.7.0",
            "0.6.2",
            "0.6.1",
            "0.6.0",
            "0.5.1",
            "0.5.0",
            "0.4.4",
            "0.4.3",
            "0.4.2",
            "0.4.1",
            "0.4.0",
            "0.3.1",
            "0.3.0",
            "0.2.14",
            "0.2.13",
            "0.2.12",
            "0.2.11",
            "0.2.10",
            "0.2.9",
            "0.2.8",
            "0.2.7",
            "0.2.6",
            "0.2.5",
            "0.2.4",
            "0.2.3",
            "0.2.2",
            "0.2.1",
            "0.2.0",
            "0.1.9",
            "0.1.8",
            "0.1.7",
            "0.1.6",
            "0.1.5",
            "0.1.4",
            "0.1.3",
            "0.1.2",
            "0.1.1",
            "0.1.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-38186.json"
          }
        }
      ],
      "modified": "2026-10-24T10:31:00.261358228Z",
      "provider": "osv",
      "references": [
        "https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/comrak/RUSTSEC-2021-0063.md",
        "https://rustsec.org/advisories/RUSTSEC-2021-0063.html"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-38186",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 439501,
  "published_at": "2021-08-08T06:15:08.78+00:00"
}