{"answers":{"affected":"5 open source packages ship an affected version, including compliance-trestle.","exploited":"There is no known exploitation of CVE-2026-54757 in the wild and no public exploit code.","fix":"Upgrade compliance-trestle to a fixed version for your release line: 3.12.4 or 4.1.0.","what":"CVE-2026-54757 is a high-severity code injection vulnerability in oscal-compass compliance-trestle, published on 25 Aug 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-54757 and fix it if it is affected.\n\nWhat it is: CVE-2026-54757 is a high-severity code injection vulnerability in oscal-compass compliance-trestle, published on 25 Aug 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-54757 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- compliance-trestle (PyPI): affected all versions; fixed in 3.12.4, 4.1.0\n- compliance-trestle (PyPI): affected all versions; fixed in 3.12.4\n- compliance-trestle (PyPI): affected all versions; fixed in 3.12.4\n- compliance-trestle (PyPI): affected from 4.0.0; fixed in 4.1.0\n- compliance-trestle (PyPI): affected from 4.0.0; fixed in 4.1.0\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-54757/ (Markdown: https://insights.sbomify.com/CVE-2026-54757/index.md)","id":"CVE-2026-54757","markdown":"https://insights.sbomify.com/CVE-2026-54757/index.md","name":"CVE-2026-54757","record":{"aliases":["GHSA-jw39-3688-r4rx","PYSEC-2026-3817"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Python compliance SDK","requires_auth":"none","summary":"Attackers can execute arbitrary OS commands by injecting Jinja2 expressions into Markdown or YAML inputs processed by the Trestle compliance tool.","user_interaction":"required","vuln_class":"code_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":7.8,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-94","name":"Improper Control of Generation of Code"}],"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, Trestle is vulnerable to server-side template injection that can lead to remote code execution. This occurs because the MDCleanInclude and MDSectionInclude Jinja2 tags re-parse untrusted Markdown content as template source code using a non-sandboxed jinja2.Environment. An attacker who controls content that Trestle renders, such as a crafted workspace Markdown file, a third-party SSP document, or a YAML lookup-table value, can inject a Jinja2 expression that traverses Python object internals to execute arbitrary operating system commands in the context of the Trestle process. This issue is fixed in versions 3.12.4 and 4.1.0.","ecosystems":["PyPI"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Trestle has Server-Side Template Injection (SSTI) via Recursive Template Re-evaluation of Untrusted Data","id":"CVE-2026-54757","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"PyPI","product":null,"products":[],"type":"code_injection","year":"2026"},"n_packages":5,"n_references":3,"next":{"headline":"Notepad++: Stack Buffer Overflow in expandNppEnvironmentStrs","id":"CVE-2026-54758"},"packages":[{"ecosystem":"PyPI","fixed":["3.12.4","4.1.0"],"introduced":["0","4.0.0"],"last_affected":[],"package":"compliance-trestle","purl":"pkg:pypi/compliance-trestle","source":"PYSEC-2026-3817"},{"ecosystem":"PyPI","fixed":["3.12.4"],"introduced":["0"],"last_affected":[],"package":"compliance-trestle","purl":null,"source":"GHSA-jw39-3688-r4rx"},{"ecosystem":"PyPI","fixed":["3.12.4"],"introduced":["0"],"last_affected":[],"package":"compliance-trestle","purl":"pkg:pypi/compliance-trestle","source":"GHSA-jw39-3688-r4rx"},{"ecosystem":"PyPI","fixed":["4.1.0"],"introduced":["4.0.0"],"last_affected":[],"package":"compliance-trestle","purl":null,"source":"GHSA-jw39-3688-r4rx"},{"ecosystem":"PyPI","fixed":["4.1.0"],"introduced":["4.0.0"],"last_affected":[],"package":"compliance-trestle","purl":"pkg:pypi/compliance-trestle","source":"GHSA-jw39-3688-r4rx"}],"prev":{"headline":"Jodit Editor: Prototype pollution via Jodit.configure() / ConfigMerge","id":"CVE-2026-54756"},"products":["compliance-trestle"],"published":"2026-08-25","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"PyPA Advisory Database","prefix":"PYSEC"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-08-26","vendors":["oscal-compass"]},"summary":"Attackers can execute arbitrary OS commands by injecting Jinja2 expressions into Markdown or YAML inputs processed by the Trestle compliance tool.","url":"https://insights.sbomify.com/CVE-2026-54757/"}