{"cve":"CVE-2026-57171","nvd":{"published":"2026-08-26T05:18:11.923","modified":"2026-09-09T21:09:13.080","status":"Deferred","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H","score":7.7},"cwes":["CWE-22"],"references":["https://github.com/oscal-compass/compliance-trestle/commit/37ed44f5f2e074202c8eb7c2f203c05d19461cdc","https://github.com/oscal-compass/compliance-trestle/releases/tag/v4.1.0","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"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:50:17.453294893+00:00"},"epss":{"cve":"CVE-2026-57171","score":0.00221,"percentile":0.12761,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-r4vp-3vw6-r2x5","url":"https://osv.dev/vulnerability/GHSA-r4vp-3vw6-r2x5","summary":"Trestle is vulnerable to arbitrary file write via path traversal in author generate commands (Incomplete fix of CVE-2026-46345)","modified":"2026-10-01T17:56:14.259392780Z","packages":[{"ecosystem":"PyPI","name":"compliance-trestle","purl":"pkg:pypi/compliance-trestle","ranges":["<3.12.4"],"fixed":["3.12.4"]},{"ecosystem":"PyPI","name":"compliance-trestle","purl":"pkg:pypi/compliance-trestle","ranges":[">=4.0.0 <4.1.0"],"fixed":["4.1.0"]}]},{"id":"PYSEC-2026-4030","url":"https://osv.dev/vulnerability/PYSEC-2026-4030","summary":"Trestle is vulnerable to arbitrary file write via path traversal in author generate commands (Incomplete fix of CVE-2026-46345)","modified":"2026-10-01T17:45:04.817354251Z","packages":[{"ecosystem":"PyPI","name":"compliance-trestle","purl":"pkg:pypi/compliance-trestle","ranges":["<3.12.4",">=4.0.0 <4.1.0"],"fixed":["3.12.4","4.1.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}