Security advisory

{
  "id": "cf0842e032f6cd1d402edeb3fed401e5f791a206e29a570c7b1034a39b0b7b33",
  "url": "https://osv.dev/vulnerability/CVE-2021-3028",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-3028",
    "summary": "git-big-picture before 1.0.0 mishandles ' characters in a branch name, leading to code execution.",
    "evidence": "osv:CVE-2021-3028",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2021-3028",
      "aliases": [
        "CVE-2021-3028",
        "GHSA-x38j-4rr5-hqrj",
        "PYSEC-2021-15"
      ],
      "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/git-big-picture/git-big-picture",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "3291cdb43baa0c7461073e8524dffffbf5297902"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:git-big-picture_project:git-big-picture:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.0.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "3291cdb43baa0c7461073e8524dffffbf5297902"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v1.0.0"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v0.10.1",
            "v0.10.0",
            "v0.9.0",
            "v0.8.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-3028.json"
          }
        }
      ],
      "modified": "2026-10-20T10:53:45.039162114Z",
      "provider": "osv",
      "references": [
        "https://github.com/git-big-picture/git-big-picture/releases/tag/v1.0.0",
        "https://github.com/git-big-picture/git-big-picture/pull/27",
        "https://github.com/git-big-picture/git-big-picture/pull/62"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-3028",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 384572,
  "published_at": "2021-01-13T17:15:12.913+00:00"
}