apko has incorrect permission (0666) in /etc/ld.so.cache and other files

{
  "id": "056a81f523e978df920b7df17fa525496b21165fdd7ed9b4c83131fababcc38d",
  "url": "https://osv.dev/vulnerability/CVE-2025-53945",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "apko has incorrect permission (0666) in /etc/ld.so.cache and other files",
    "summary": "apko allows users to build and publish OCI container images built from apk packages. Starting in version 0.27.0 and prior to version 0.29.5, critical files were inadvertently set to 0666, which could likely be abused for root escalation. Version 0.29.5 contains a fix for the issue.",
    "evidence": "osv:CVE-2025-53945",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2025-53945",
      "aliases": [
        "CVE-2025-53945",
        "GHSA-x6ph-r535-3vjw",
        "GO-2025-3816"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:L"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/chainguard-dev/apko",
              "type": "GIT",
              "events": [
                {
                  "introduced": "61a72971841931d7724fa6b6967e25e32446d371"
                },
                {
                  "fixed": "aedb0772d6bf6e74d8f17690946dbc791d0f6af3"
                },
                {
                  "fixed": "04f37e2d50d5a502e155788561fb7d40de705bd9"
                },
                {
                  "fixed": "61a72971841931d7724fa6b6967e25e32446d371"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0.27.0"
                      },
                      {
                        "fixed": "0.29.5"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "range": [
                      {
                        "fixed": "04f37e2d50d5a502e155788561fb7d40de705bd9"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "aedb0772d6bf6e74d8f17690946dbc791d0f6af3"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "61a72971841931d7724fa6b6967e25e32446d371"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v0.27.0"
                  },
                  {
                    "range": [
                      {
                        "fixed": "aedb0772d6bf6e74d8f17690946dbc791d0f6af3"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v0.29.5"
                  }
                ]
              }
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-53945.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:25.436793919Z",
      "provider": "osv",
      "references": [
        "https://github.com/chainguard-dev/apko/releases/tag/v0.27.0",
        "https://github.com/chainguard-dev/apko/releases/tag/v0.29.5",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/53xxx/CVE-2025-53945.json",
        "https://github.com/chainguard-dev/apko/security/advisories/GHSA-x6ph-r535-3vjw",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-53945",
        "https://github.com/chainguard-dev/apko/commit/04f37e2d50d5a502e155788561fb7d40de705bd9",
        "https://github.com/chainguard-dev/apko/commit/aedb0772d6bf6e74d8f17690946dbc791d0f6af3"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-276"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/53xxx/CVE-2025-53945.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-53945",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 491916,
  "published_at": "2025-07-18T15:35:17.325+00:00"
}