Security advisory

{
  "id": "3e8e8666dfacc054c6b6a823203465fb70547fcbd9875ff75a58cf7597a23641",
  "url": "https://osv.dev/vulnerability/CVE-2020-29529",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-29529",
    "summary": "HashiCorp go-slug up to 0.4.3 did not fully protect against directory traversal while unpacking tar archives, and protections could be bypassed with specific constructions of multiple symlinks. Fixed in 0.5.0.",
    "evidence": "osv:CVE-2020-29529",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2020-29529",
      "aliases": [
        "CVE-2020-29529",
        "GHSA-2g5j-5x95-r6hr",
        "GO-2021-0094"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/hashicorp/go-slug",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "28cafc59c8da6126a3ae94dfa84181df4073454f"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:hashicorp:go-slug:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "0.5.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "28cafc59c8da6126a3ae94dfa84181df4073454f"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v0.5.0"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v0.4.3",
            "v0.4.2",
            "v0.4.1",
            "v0.4.0",
            "v0.3.1",
            "v0.3.0",
            "v0.2.0",
            "v0.1.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-29529.json"
          }
        }
      ],
      "modified": "2026-10-20T10:53:15.322614726Z",
      "provider": "osv",
      "references": [
        "https://github.com/hashicorp/go-slug/releases/tag/v0.5.0",
        "https://github.com/hashicorp/go-slug/compare/v0.4.3...v0.5.0",
        "https://github.com/hashicorp/go-slug/pull/12",
        "https://securitylab.github.com/advisories/GHSL-2020-262-zipslip-go-slug"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2020-29529",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 384243,
  "published_at": "2020-12-03T20:15:11.82+00:00"
}