compliance-trestle Vulnerable to Remote Code Execution via Recursive Server-Side Template Injection (SSTI)
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-1336.
Summary
compliance-trestle is a tooling platform for managing compliance as code. Versions prior to 3.12.2 and 4.0.3 have a Server-Side Template Injection (SSTI) vulnerability exists in the `trestle author jinja` command. The command recursively evaluates rendered templates, allowing an attacker to achieve arbitrary command execution with privileges of the running process by injecting malicious payloads into data fields (such as SSP documents or Lookup Tables). The vulnerability does not require attacker control of the template itself. Only attacker-controlled input data rendered into a trusted template is required. This distinction is critical: the template author may only intend to render plain text (e.g., `Title: {{ ssp.metadata.title }}`), but because of the recursive parsing, the data field itself becomes executable. The vulnerability is caused by recursive re-compilation and re-rendering of already-rendered output. Versions 3.12.3 and 4.0.3 patch the issue.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| oscal-compass | compliance-trestle | before 3.12.2; 4.0.0 to before 4.0.3 | 3.12.2, 4.0.3 | Patch available | CNA |
| — | compliance-trestle (PyPI) | before 3.12.2 | 3.12.2 | Patch available | GHSA-gg2g-p7xc-qqmm |
| — | compliance-trestle (PyPI) | 4.0.0 to before 4.0.3 | 4.0.3 | Patch available | GHSA-gg2g-p7xc-qqmm |
- compliance-trestle Vendoroscal-compass Affected before 3.12.2; 4.0.0 to before 4.0.3 Fixed in 3.12.2, 4.0.3 Patch available CNA
- compliance-trestle (PyPI) Vendor— Affected before 3.12.2 Fixed in 3.12.2 Patch available GHSA-gg2g-p7xc-qqmm
- compliance-trestle (PyPI) Vendor— Affected 4.0.0 to before 4.0.3 Fixed in 4.0.3 Patch available GHSA-gg2g-p7xc-qqmm
Remediation
- Fix · CNA compliance-trestle (oscal-compass) Fixed in 3.12.2, 4.0.3
- Fix · GHSA-gg2g-p7xc-qqmm compliance-trestle (PyPI) Fixed in 3.12.2 Advisory →
- Fix · GHSA-gg2g-p7xc-qqmm compliance-trestle (PyPI) Fixed in 4.0.3 Advisory →
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
Not affected: 2 products
- File Integrity Operator
- Red Hat Hardened Images
Timeline
- 2026-10-02 Threatist record created from CVE-2026-46439
- 2026-10-03 Alias added: GHSA-gg2g-p7xc-qqmm
- 2026-10-10 Affected versions changed · Red Hat
References
Other 5
- https://github.com/oscal-compass/compliance-trestle/security/advisories/GHSA-gg2g-p7xc-qqmm
- https://github.com/oscal-compass/compliance-trestle/commit/247fcce289f60103f3d8e28d8ec51a6986b94fb6
- https://github.com/oscal-compass/compliance-trestle/commit/7d107b3ac53caca7bde97a6278b23cd739d94525
- https://github.com/pypa/advisory-database/tree/main/vulns/compliance-trestle/PYSEC-2026-2425.yaml
- https://github.com/oscal-compass/compliance-trestle
More oscal-compass vulnerabilities
- TI-2026-37891 Trestle URLSecurityValidator SSRF allowlist bypass via IPv4-mapped IPv6 and 0.0.0.0 CVSS 4.0HIGH 8.6
- TI-2026-34065 compliance-trestle - jinja has an Arbitrary File Write via Path Traversal CVSS 3.1HIGH 8.4
- TI-2026-33511 compliance-trestle Profile Import has an Arbitrary File Read via trestle:// URI and Relative Path Traversal CVSS 4.0MEDIUM 6.9
- TI-2026-34095 compliance-trestle Vulnerable to SSRF in Remote Fetching Subsystem CVSS 3.1MEDIUM 6.7
- TI-2026-41137 Trestle SSTI in Jinja2 include tags allows arbitrary code execution (Incomplete fix of CVE-2026-46439) CVSS 3.1HIGH 7.8
- TI-2026-39563 Trestle has Server-Side Template Injection (SSTI) via Recursive Template Re-evaluation of Untrusted Data CVSS 3.1HIGH 7.8
Sources
- CVE-2026-46439 · CVE Program
- CVE-2026-46439 · NVD
- FIRST EPSS
- GHSA-gg2g-p7xc-qqmm · GitHub Advisory Database · CC BY 4.0
- CVE-2026-46439 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences