SharpCompress, sharpcompress — security advisory

{
  "id": "ef3727d205dc78b7f2771082b6c24def01e945aa3f416a8af01c1014213d8a02",
  "url": "https://osv.dev/vulnerability/ECHO-f206-fe3f-2dda",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "ECHO-f206-fe3f-2dda",
    "summary": "ECHO-f206-fe3f-2dda",
    "evidence": "osv:ECHO-f206-fe3f-2dda",
    "products": [
      {
        "name": {
          "value": "sharpcompress",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "0.29",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "SharpCompress",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "0.23.0+echo.1",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "ECHO-f206-fe3f-2dda",
      "aliases": [
        "ECHO-f206-fe3f-2dda"
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "0.29"
                }
              ]
            }
          ],
          "package": {
            "name": "sharpcompress",
            "purl": "pkg:nuget/sharpcompress",
            "ecosystem": "Echo:NuGet"
          },
          "database_specific": {
            "source": "https://advisory.echohq.com/osv/ECHO-f206-fe3f-2dda.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "0.23.0+echo.1"
                }
              ]
            }
          ],
          "package": {
            "name": "SharpCompress",
            "purl": "pkg:nuget/SharpCompress",
            "ecosystem": "Echo:NuGet"
          },
          "database_specific": {
            "source": "https://advisory.echohq.com/osv/ECHO-f206-fe3f-2dda.json"
          }
        }
      ],
      "modified": "2026-10-10T00:45:07.506759067Z",
      "provider": "osv",
      "upstream": [
        "CVE-2021-39208",
        "GHSA-jp7f-grcv-6mjf"
      ],
      "references": [
        "https://advisory.echohq.com/cve/CVE-2021-39208",
        "https://github.com/adamhathcock/sharpcompress/security/advisories/GHSA-jp7f-grcv-6mjf",
        "https://nvd.nist.gov/vuln/detail/CVE-2021-39208",
        "https://github.com/adamhathcock/sharpcompress/pull/614",
        "https://github.com/adamhathcock/sharpcompress/releases/tag/0.29.0",
        "https://github.com/adamhathcock/sharpcompress/commit/ea5c8dc06314c7a5068e7901c51a625224d2b288",
        "https://github.com/advisories/GHSA-jp7f-grcv-6mjf"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2021-39208",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 124787,
  "published_at": "2026-10-09T08:21:55.556+00:00"
}