{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "source": "REFERENCES"
          },
          "events": [
            {
              "introduced": "56b7d88975aa8da6446857cfd92de0825024bf63"
            },
            {
              "fixed": "56b7d88975aa8da6446857cfd92de0825024bf63"
            },
            {
              "fixed": "e35282b26e499b1d9e8f30bba9dccd71cd8b02ba"
            }
          ],
          "repo": "https://github.com/erlang/rebar3",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-6ggr-r7mh-2mv8"
  ],
  "database_specific": {
    "cna_assigner": "EEF",
    "cwe_ids": [
      "CWE-22"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/103xxx/CVE-2026-103060.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "introduced": "3.7.0-rc1"
          },
          {
            "fixed": "3.27.2"
          }
        ],
        "source": "AFFECTED_FIELD"
      }
    ]
  },
  "details": "Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in erlang rebar3 allows a malicious package publisher to delete a directory outside the project's _build directory and extract package files into it when a developer fetches dependencies.\n\nA package release's dependencies in a Hex registry carry an app field that names the dependency's OTP application. rebar3 uses this field as the dependency's name without validating it (rebar_packages:parse_deps/1) and builds the dependency's directory from that name (rebar_app_utils:dep_to_app/7). rebar_fetch:download_source_online/2 deletes that directory with rm -rf and moves the fetched package into it. hex.pm didn't restrict the field to a directory name before 2026-10-12, so a publisher could set it to a value such as ../../../../target. When a project depends on such a release directly or transitively, rebar3 get-deps deletes the directory the name resolves to and writes the dependency's files there. This happens before the dependency's own rebar.config.script is evaluated, and get-deps compiles nothing.\n\nThis issue affects rebar3: from 3.7.0-rc1 before 3.27.2.",
  "id": "CVE-2026-103060",
  "modified": "2026-10-14T02:30:25.959542476Z",
  "published": "2026-10-12T15:43:57.636Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://cna.erlef.org/cves/CVE-2026-103060.html"
    },
    {
      "type": "WEB",
      "url": "https://github.com"
    },
    {
      "type": "WEB",
      "url": "https://osv.dev/vulnerability/EEF-CVE-2026-103060"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/103xxx/CVE-2026-103060.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/erlang/rebar3/security/advisories/GHSA-6ggr-r7mh-2mv8"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-103060"
    },
    {
      "type": "FIX",
      "url": "https://github.com/erlang/rebar3/commit/56b7d88975aa8da6446857cfd92de0825024bf63"
    },
    {
      "type": "FIX",
      "url": "https://github.com/erlang/rebar3/commit/e35282b26e499b1d9e8f30bba9dccd71cd8b02ba"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/erlang/rebar3"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Path traversal in rebar3 via unvalidated dependency app names"
}