What’s Vulnerable › Vulnerabilities

CVE-2026-45725: compliance-trestle Remote Fetching Mechanism has an Arbitrary File Write via Cache Path Traversal

• Severity: high (CVSS 7.1 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-13 · updated 2026-09-18
• Weakness: CWE-73

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 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.

Affected products

• oscal-compass compliance-trestle: before 3.12.2; from 4.0.0, < 4.0.3

References

• https://github.com/oscal-compass/compliance-trestle/commit/89f4e53d159e8ff901da4d7c3b51c9556bd32ec0
• https://github.com/oscal-compass/compliance-trestle/commit/9abc492329fcc8d0557182317de9bde854385da3
• https://github.com/oscal-compass/compliance-trestle/security/advisories/GHSA-g3vg-vx23-3858
• https://github.com/pypa/advisory-database/tree/main/vulns/compliance-trestle/PYSEC-2026-2424.yaml

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