eopkg has Path Traversal: '../filedir' vulnerability

{
  "id": "07dc1dd9816a487a5fd826155d2a6d21373b8e2f68aba1d9168dfe0ee6692300",
  "url": "https://osv.dev/vulnerability/CVE-2026-21436",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "eopkg has Path Traversal: '../filedir' vulnerability",
    "summary": "eopkg is a Solus package manager implemented in python3. In versions prior to 4.4.0, a malicious package could escape the directory set by `--destdir`. This requires the installation of a package from a malicious or compromised source. Files in such packages would not be installed in the path given by `--destdir`, but on a different location on the host. The issue has been fixed in v4.4.0. Users only installing packages from the Solus repositories are not affected.",
    "evidence": "osv:CVE-2026-21436",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-21436",
      "aliases": [
        "CVE-2026-21436",
        "GHSA-786v-47cq-qm6m"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:A/VC:N/VI:H/VA:N/SC:N/SI:H/SA:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/getsolus/eopkg",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "ac98ba845abf6dce0ae4c34c3930bb500a9b21c3"
                },
                {
                  "fixed": "e7694323ed64e08b5b4b108fff273c64125cd39d"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:getsol:eopkg:*:*:*:*:*:python:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "4.4.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "e7694323ed64e08b5b4b108fff273c64125cd39d"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "ac98ba845abf6dce0ae4c34c3930bb500a9b21c3"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v4.4.0"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v4.3.4",
            "v4.3.3",
            "v4.3.2",
            "v4.3.1",
            "v4.3.0",
            "v4.2.1",
            "v4.2.0",
            "v4.1.6",
            "v4.1.5",
            "v4.1.4",
            "v4.1.3",
            "v4.1.2",
            "v4.1.1",
            "v4.1.0",
            "v4.0.0",
            "v3.10",
            "v4.0-alpha1",
            "v3.9",
            "v3.8",
            "v3.7",
            "v3.6",
            "v3.5",
            "v3.4",
            "v3.3",
            "v3.2",
            "v3.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-21436.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:30.174544034Z",
      "provider": "osv",
      "references": [
        "https://github.com/getsolus/eopkg/releases/tag/v4.4.0",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/21xxx/CVE-2026-21436.json",
        "https://github.com/getsolus/eopkg/security/advisories/GHSA-786v-47cq-qm6m",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-21436",
        "https://github.com/getsolus/eopkg/commit/e7694323ed64e08b5b4b108fff273c64125cd39d",
        "https://github.com/getsolus/eopkg/pull/201"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-24"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/21xxx/CVE-2026-21436.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-21436",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 497053,
  "published_at": "2026-01-01T18:03:17.32+00:00"
}