CVE-2026-45774

Description

compliance-trestle is a tooling platform for managing compliance as code. Prior to versiions 3.12.2 and 4.0.3, the compliance-trestle library's profile import mechanism resolves `trestle://` URIs and relative file paths by joining them with `trestle_root` and calling `.resolve()`, but performs no boundary check to ensure the resolved path stays within the trestle workspace. An attacker can craft a malicious OSCAL profile YAML with `imports[].href` containing path traversal sequences to read arbitrary files from the server filesystem. Versions 3.12.3 and 4.0.3 patch the issue.

References

• https://github.com/oscal-compass/compliance-trestle/commit/5c65c5926fe7ca908b9c1d281f904e7d97ba8310
• https://github.com/oscal-compass/compliance-trestle/commit/d00a0c2f702c24f7016009fbd626036f5c46f47b
• https://github.com/oscal-compass/compliance-trestle/security/advisories/GHSA-mj4x-vf5c-5xg8
• https://github.com/pypa/advisory-database/tree/main/vulns/compliance-trestle/PYSEC-2026-2426.yaml