Security advisory

{
  "id": "2ae60400c805723936f3b52ee962960d4b2e2b922f0b5a36e3ba7ca6b1f1ae37",
  "url": "https://osv.dev/vulnerability/CVE-2026-12567",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2026-12567",
    "summary": "The github_workflows module constructs local directory paths from user-controlled repository names without validating for symlinks. A local attacker sharing the scan directory can plant a symlink at the predictable output path, causing workflow data to be written to an attacker-chosen location.",
    "evidence": "osv:CVE-2026-12567",
    "products": [],
    "severity": "low",
    "structured": {
      "id": "CVE-2026-12567",
      "aliases": [
        "CVE-2026-12567",
        "GHSA-rvp7-w75q-9fv2",
        "PYSEC-2026-2394"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/blacklanternsecurity/bbot",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "16d9c42b6"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "fixed": "16d9c42b6"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-12567.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:49.414145902Z",
      "provider": "osv",
      "references": [
        "https://github.com/blacklanternsecurity/bbot/commit/16d9c42b6"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2026-12567",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 517800,
  "published_at": "2026-06-17T23:17:03.22+00:00"
}