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CVE-2026-57171— Trestle is vulnerable to arbitrary file write via path traversal in author generate commands (Incomplete fix of CVE-2026-46345)

Quick assessment

Affected
oscal-compass compliance-trestle
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

oscal-compass Compliance-trestle是oscal-compass组织的一套合规自动化与安全评估框架。 oscal-compass Compliance-trestle 3.12.4之前版本和4.0.0至4.0.3版本存在路径遍历漏洞，该漏洞源于catalog-generate、profile-generate和ssp-generate命令对输出路径的路径遍历验证不足，可能导致攻击者在Trestle工作区外写入任意文件，使用--force-overwrite时还可能删除目录树并间

CVSS 7.7 · High EPSS 0.22% · P12

Affected Version Matrix 2

VendorProduct Version RangeStatus
oscal-compass compliance-trestle < 3.12.4 affected
>= 4.0.0, < 4.1.0 affected
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I. Basic Information for CVE-2026-57171

Vulnerability Information
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Vulnerability Title
Trestle is vulnerable to arbitrary file write via path traversal in author generate commands (Incomplete fix of CVE-2026-46345)
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
oscal-compass Compliance-trestle 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
oscal-compass Compliance-trestle是oscal-compass组织的一套合规自动化与安全评估框架。 oscal-compass Compliance-trestle 3.12.4之前版本和4.0.0至4.0.3版本存在路径遍历漏洞，该漏洞源于catalog-generate、profile-generate和ssp-generate命令对输出路径的路径遍历验证不足，可能导致攻击者在Trestle工作区外写入任意文件，使用--force-overwrite时还可能删除目录树并间
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
oscal-compass compliance-trestle < 3.12.4 -

II. Public POCs for CVE-2026-57171

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AI-Generated POC Verified env Premium
Reproduced successfully in a real sandbox · Below is the actual recording of building the environment and exploiting the vulnerability.
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claude_code · 12016 chars
GitHub 复现环境（可 clone 直接跑）
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III. Intelligence Information for CVE-2026-57171

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Patches & Fixes for CVE-2026-57171 (1)

Vendor Advisories for CVE-2026-57171 (2)

Same Patch Batch · oscal-compass · 2026-08-25 · 4 CVEs total

CVE-2026-52776 8.6 HIGH Trestle URLSecurityValidator SSRF allowlist bypass via IPv4-mapped IPv6 and 0.0.0.0
CVE-2026-54757 7.8 HIGH Trestle has Server-Side Template Injection (SSTI) via Recursive Template Re-evaluation of
CVE-2026-57170 7.8 HIGH Trestle SSTI in Jinja2 include tags allows arbitrary code execution (Incomplete fix of CVE

IV. Related Vulnerabilities

Same product: compliance-trestle
Same vendor: oscal-compass
Same weakness: CWE-22

V. Comments for CVE-2026-57171

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