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Medium

Repomix: attach_packed_output can bypass file-read secret scanning for supported local files

Type: advisorySources: OSV

Repomix is a tool that packs repositories into AI-friendly files. Prior to 1.14.1, the Repomix MCP server attach_packed_output and read_repomix_output flow can register and read arbitrary local .json, .txt, .md, or .xml files without the file_system_read_file runSecretLint() safety check or Repomix packed-output validation, allowing MCP callers to bypass the local file-read secret-scanning boundary. This issue is fixed in version 1.14.1.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2026-49988
Confirmed fixed CVEs
Not specified
Updated in this feed
2 Nov 2026, 17:43 UTC · Revision 1

Source evidence

Repomix: attach_packed_output can bypass file-read secret scanning for supported local files

core-osv · Original source

Published 15 Jul 2026, 18:05 UTC

Repomix is a tool that packs repositories into AI-friendly files. Prior to 1.14.1, the Repomix MCP server attach_packed_output and read_repomix_output flow can register and read arbitrary local .json, .txt, .md, or .xml files without the file_system_read_file runSecretLint() safety check or Repomix packed-output validation, allowing MCP callers to bypass the local file-read secret-scanning boundary. This issue is fixed in version 1.14.1.

osv:CVE-2026-49988
Complete source record
{
  "id": "d98c58c66c94830fa37fb60b6b6381a27ac93b0fe5a8fd62d575c37b5442b8f1",
  "url": "https://osv.dev/vulnerability/CVE-2026-49988",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Repomix: attach_packed_output can bypass file-read secret scanning for supported local files",
    "summary": "Repomix is a tool that packs repositories into AI-friendly files. Prior to 1.14.1, the Repomix MCP server attach_packed_output and read_repomix_output flow can register and read arbitrary local .json, .txt, .md, or .xml files without the file_system_read_file runSecretLint() safety check or Repomix packed-output validation, allowing MCP callers to bypass the local file-read secret-scanning boundary. This issue is fixed in version 1.14.1.",
    "evidence": "osv:CVE-2026-49988",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-49988",
      "aliases": [
        "CVE-2026-49988",
        "GHSA-hwpp-h97w-2h3j"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/yamadashy/repomix",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "a7b93adfcdb11be923a9a092cceb1cb6739ef8e1"
                },
                {
                  "fixed": "e447f7dba6f51fdb26bcad0c280542fca291960e"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:yamadashy:repomix:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.14.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "e447f7dba6f51fdb26bcad0c280542fca291960e"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "a7b93adfcdb11be923a9a092cceb1cb6739ef8e1"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v1.14.1"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v1.14.0",
            "v1.13.1",
            "v1.13.0",
            "v1.12.0",
            "v1.11.1",
            "v1.11.0",
            "v1.10.2",
            "v1.10.1",
            "v1.10.0",
            "v1.9.2",
            "v1.9.1",
            "v1.9.0",
            "v1.8.0",
            "v1.7.0",
            "v1.6.1",
            "v1.6.0",
            "v1.5.0",
            "v1.4.2",
            "v1.4.1",
            "v1.4.0",
            "v1.3.0",
            "v1.2.1",
            "v1.2.0",
            "v1.1.0",
            "v1.0.0",
            "v0.3.9",
            "v0.3.8",
            "v0.3.7",
            "v0.3.6",
            "v0.3.5",
            "v0.3.4",
            "v0.3.3",
            "v0.3.2",
            "v0.3.1",
            "v0.3.0",
            "v0.2.42",
            "v0.2.41",
            "v0.2.40",
            "v0.2.39",
            "v0.2.38",
            "v0.2.37",
            "v0.2.36",
            "v0.2.35",
            "v0.2.34",
            "v0.2.33",
            "v0.2.32",
            "v0.2.31",
            "v0.2.30",
            "v0.2.29",
            "v0.2.28",
            "v0.2.26",
            "v0.2.25",
            "v0.2.24",
            "v0.2.23",
            "v0.2.22",
            "v0.2.21",
            "v0.2.20",
            "v0.2.19",
            "v0.2.18",
            "v0.2.17",
            "v0.2.16",
            "v0.2.15",
            "v0.2.14",
            "v0.2.13",
            "v0.2.12",
            "v0.2.11",
            "v0.2.10",
            "v0.2.9",
            "v0.2.8",
            "v0.2.7",
            "v0.2.6",
            "v0.2.5",
            "v0.2.4",
            "v0.2.3",
            "v0.2.2",
            "v0.1.44",
            "v0.1.43",
            "v0.1.42",
            "v0.1.41",
            "v0.1.40",
            "v0.1.39",
            "v0.1.38",
            "v0.1.37",
            "v0.1.36",
            "v0.1.35",
            "v0.1.34",
            "v0.1.33",
            "v0.1.32",
            "v0.1.31",
            "v0.1.30",
            "v0.1.29",
            "v0.1.28",
            "v0.1.27",
            "v0.1.26",
            "v0.1.25",
            "v0.1.24",
            "v0.1.23",
            "v0.1.22",
            "v0.1.21",
            "v0.1.20",
            "v0.1.19",
            "v0.1.18",
            "v0.1.16",
            "v0.1.15",
            "v0.1.14",
            "v0.1.13",
            "v0.1.12",
            "v0.1.11",
            "v0.1.10",
            "v0.1.9",
            "v0.1.8",
            "v0.1.7",
            "v0.1.6",
            "v0.1.5",
            "v0.1.4",
            "v0.1.3",
            "v0.1.2",
            "v0.1.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-49988.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:21.790887854Z",
      "provider": "osv",
      "references": [
        "https://github.com/yamadashy/repomix/releases/tag/v1.14.1",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/49xxx/CVE-2026-49988.json",
        "https://github.com/yamadashy/repomix/security/advisories/GHSA-hwpp-h97w-2h3j",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-49988",
        "https://github.com/yamadashy/repomix/commit/e447f7dba6f51fdb26bcad0c280542fca291960e"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-200"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/49xxx/CVE-2026-49988.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-49988",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 487907,
  "published_at": "2026-07-15T18:05:10.789+00:00"
}