dotnet-bootstrap-9 — security advisory

{
  "id": "459d86946fb7c5a4bd5277078e384a8fe84474694e98fbbff7b68f5df0e4e8a0",
  "url": "https://osv.dev/vulnerability/CGA-5qvf-76hj-4j43",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CGA-5qvf-76hj-4j43",
    "summary": "CGA-5qvf-76hj-4j43",
    "evidence": "osv:CGA-5qvf-76hj-4j43",
    "products": [
      {
        "name": {
          "value": "dotnet-bootstrap-9",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      },
      {
        "name": {
          "value": "dotnet-bootstrap-9",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CGA-5qvf-76hj-4j43",
      "aliases": [
        "CGA-5qvf-76hj-4j43"
      ],
      "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": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "dotnet-bootstrap-9",
            "purl": "pkg:apk/chainguard/dotnet-bootstrap-9?arch=x86_64",
            "ecosystem": "Chainguard"
          },
          "database_specific": {
            "source": "https://advisories.cgr.dev/chainguard/v3/osv/CGA-5qvf-76hj-4j43.json",
            "chainguard": {
              "applies_to_subpackages": false
            }
          },
          "ecosystem_specific": {
            "components": [
              {
                "component_name": "System.Security.Cryptography.Xml",
                "component_purl": "pkg:nuget/System.Security.Cryptography.Xml@9.0.19",
                "component_type": "dotnet",
                "component_version": "9.0.19",
                "component_location": "/usr/share/dotnet-bootstrap/dotnet/packs/Microsoft.AspNetCore.App.Ref/9.0.20/ref/net9.0/System.Security.Cryptography.Xml.dll",
                "latest_event_status": "pending_upstream_fix",
                "latest_event_timestamp": "2026-10-19T16:50:05Z"
              }
            ]
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "dotnet-bootstrap-9",
            "purl": "pkg:apk/wolfi/dotnet-bootstrap-9?arch=x86_64",
            "ecosystem": "Wolfi"
          },
          "database_specific": {
            "source": "https://advisories.cgr.dev/chainguard/v3/osv/CGA-5qvf-76hj-4j43.json",
            "chainguard": {
              "applies_to_subpackages": false
            }
          },
          "ecosystem_specific": {
            "components": [
              {
                "component_name": "System.Security.Cryptography.Xml",
                "component_purl": "pkg:nuget/System.Security.Cryptography.Xml@9.0.19",
                "component_type": "dotnet",
                "component_version": "9.0.19",
                "component_location": "/usr/share/dotnet-bootstrap/dotnet/packs/Microsoft.AspNetCore.App.Ref/9.0.20/ref/net9.0/System.Security.Cryptography.Xml.dll",
                "latest_event_status": "pending_upstream_fix",
                "latest_event_timestamp": "2026-10-19T16:50:05Z"
              }
            ]
          }
        }
      ],
      "modified": "2026-10-20T17:26:00.340109789Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-96958",
        "GHSA-r955-8q5j-3h83"
      ],
      "references": [
        "https://github.com/dotnet/runtime/security/advisories/GHSA-r955-8q5j-3h83",
        "https://github.com/dotnet/announcements/issues/488",
        "https://github.com/dotnet/runtime/issues/135709",
        "https://github.com/dotnet/runtime",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-96958",
        "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-96958"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-96958",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 389949,
  "published_at": "2026-10-14T13:38:32+00:00"
}