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Trestle is vulnerable to arbitrary file write via path traversal in author generate commands (Incomplete fix of CVE-2026-46345)

Type: advisorySources: OSV

Compliance-trestle (Trestle) is a Python SDK and command-line tool for managing OSCAL compliance documents. In versions before 3.12.4 and versions 4.0.0 through 4.0.3, the catalog-generate, profile-generate, and ssp-generate author commands write generated Markdown to an attacker-influenced output path without path-traversal validation, allowing arbitrary file write outside the Trestle workspace. These commands join the user-supplied output argument onto the Trestle root and write to the result, but guard it only with an is_directory_name_allowed() task-name-collision check rather than the PathSecurityValidator.validate_local_path() guard used by the jinja command, so an absolute path or one containing traversal sequences escapes the workspace and writes files under an attacker-chosen location as the invoking process owner. The security boundary is crossed when a trusted CI job, shared service, or wrapper derives the output argument from repository-controlled, tenant-controlled, or otherwise untrusted data while expecting output to stay inside the workspace. When --force-overwrite is used, the selected output directory is first recursively deleted, extending the primitive to destruction of an attacker-chosen directory tree and enabling indirect code execution by overwriting files a pipeline later runs. This issue is fixed in versions 3.12.4 and 4.1.0.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2026-57171
Confirmed fixed CVEs
Not specified
Updated in this feed
4 Nov 2026, 17:18 UTC · Revision 1

Source evidence

Trestle is vulnerable to arbitrary file write via path traversal in author generate commands (Incomplete fix of CVE-2026-46345)

core-osv · Original source

Published 25 Aug 2026, 23:39 UTC

Compliance-trestle (Trestle) is a Python SDK and command-line tool for managing OSCAL compliance documents. In versions before 3.12.4 and versions 4.0.0 through 4.0.3, the catalog-generate, profile-generate, and ssp-generate author commands write generated Markdown to an attacker-influenced output path without path-traversal validation, allowing arbitrary file write outside the Trestle workspace. These commands join the user-supplied output argument onto the Trestle root and write to the result, but guard it only with an is_directory_name_allowed() task-name-collision check rather than the PathSecurityValidator.validate_local_path() guard used by the jinja command, so an absolute path or one containing traversal sequences escapes the workspace and writes files under an attacker-chosen location as the invoking process owner. The security boundary is crossed when a trusted CI job, shared service, or wrapper derives the output argument from repository-controlled, tenant-controlled, or otherwise untrusted data while expecting output to stay inside the workspace. When --force-overwrite is used, the selected output directory is first recursively deleted, extending the primitive to destruction of an attacker-chosen directory tree and enabling indirect code execution by overwriting files a pipeline later runs. This issue is fixed in versions 3.12.4 and 4.1.0.

osv:CVE-2026-57171
Complete source record
{
  "id": "92faf1c4b63553b7a561bca8a589600877a0a5bade2d9ea55f5c6c1cc67a26b4",
  "url": "https://osv.dev/vulnerability/CVE-2026-57171",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Trestle is vulnerable to arbitrary file write via path traversal in author generate commands (Incomplete fix of CVE-2026-46345)",
    "summary": "Compliance-trestle (Trestle) is a Python SDK and command-line tool for managing OSCAL compliance documents. In versions before 3.12.4 and versions 4.0.0 through 4.0.3, the catalog-generate, profile-generate, and ssp-generate author commands write generated Markdown to an attacker-influenced output path without path-traversal validation, allowing arbitrary file write outside the Trestle workspace. These commands join the user-supplied output argument onto the Trestle root and write to the result, but guard it only with an is_directory_name_allowed() task-name-collision check rather than the PathSecurityValidator.validate_local_path() guard used by the jinja command, so an absolute path or one containing traversal sequences escapes the workspace and writes files under an attacker-chosen location as the invoking process owner. The security boundary is crossed when a trusted CI job, shared service, or wrapper derives the output argument from repository-controlled, tenant-controlled, or otherwise untrusted data while expecting output to stay inside the workspace. When --force-overwrite is used, the selected output directory is first recursively deleted, extending the primitive to destruction of an attacker-chosen directory tree and enabling indirect code execution by overwriting files a pipeline later runs. This issue is fixed in versions 3.12.4 and 4.1.0.",
    "evidence": "osv:CVE-2026-57171",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-57171",
      "aliases": [
        "CVE-2026-57171",
        "GHSA-r4vp-3vw6-r2x5",
        "PYSEC-2026-4030"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/oscal-compass/compliance-trestle",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "5855179606e0d0f7656f7455b930ef12d32071e6"
                },
                {
                  "introduced": "d965ee5a9a1c2680c80bfa3e63cd75f4fc488881"
                },
                {
                  "fixed": "654bfaa0768aa6e4d495911e713c5f4e061e187e"
                },
                {
                  "fixed": "37ed44f5f2e074202c8eb7c2f203c05d19461cdc"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
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                      {
                        "fixed": "3.12.4"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "range": [
                      {
                        "introduced": "4.0.0"
                      },
                      {
                        "fixed": "4.1.0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "range": [
                      {
                        "fixed": "37ed44f5f2e074202c8eb7c2f203c05d19461cdc"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "654bfaa0768aa6e4d495911e713c5f4e061e187e"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v4.1.0"
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          "versions": [
            "v3.12.3",
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            "v3.7.0",
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            "v3.5.0",
            "v3.4.0",
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            "v2.6.1",
            "v2.6.0",
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            "v0.15.0",
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            "v0.14.2",
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          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-57171.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:37.853693285Z",
      "provider": "osv",
      "references": [
        "https://github.com/oscal-compass/compliance-trestle/releases/tag/v4.1.0",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/57xxx/CVE-2026-57171.json",
        "https://github.com/oscal-compass/compliance-trestle/security/advisories/GHSA-4q5v-7g7x-j79w",
        "https://github.com/oscal-compass/compliance-trestle/security/advisories/GHSA-r4vp-3vw6-r2x5",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-57171",
        "https://github.com/oscal-compass/compliance-trestle/commit/37ed44f5f2e074202c8eb7c2f203c05d19461cdc"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-22"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/57xxx/CVE-2026-57171.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-57171",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 505260,
  "published_at": "2026-08-25T23:39:16.186+00:00"
}