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 remote fetching cache mechanism (HTTPSFetcher and SFTPFetcher) constructs the local cache file path from the URL path component without sanitizing path traversal sequences (`../`). When a remote OSCAL profile references a URL with traversal in its path, the HTTP response body is written to a location outside the intended cache directory, enabling arbitrary file write with attacker-controlled content to the filesystem. Versions 3.12.3 and 4.0.3 patch the issue.
https://github.com/pypa/advisory-database/tree/main/vulns/compliance-trestle/PYSEC-2026-2424.yaml
https://github.com/oscal-compass/compliance-trestle/security/advisories/GHSA-g3vg-vx23-3858
https://github.com/oscal-compass/compliance-trestle/commit/9abc492329fcc8d0557182317de9bde854385da3
https://github.com/oscal-compass/compliance-trestle/commit/89f4e53d159e8ff901da4d7c3b51c9556bd32ec0
Published: 2026-08-13
Updated: 2026-08-17
Base Score: 6.4
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N
Severity: Medium
Base Score: 9.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Severity: Critical
Base Score: 7.1
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
Severity: High
EPSS: 0.00047