compliance-trestle Vulnerable to Remote Code Execution via Recursive Server-Side Template Injection (SSTI)

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-46439
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-14 17:18:14 UTC
Updated2026-08-14 17:18:14 UTC
Descriptioncompliance-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.

Risk And Classification

Primary CVSS: v3.1 7.8 HIGH from [email protected]

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS: 0.001770000 probability, percentile 0.074930000 (date 2026-08-16)

Problem Types: CWE-94 | CWE-1336 | CWE-94 CWE-94: Improper Control of Generation of Code ('Code Injection') | CWE-1336 CWE-1336: Improper Neutralization of Special Elements Used in a Template Engine

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary7.8HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
3.1CNADECLARED7.8HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Oscal-compass Compliance-trestle affected < 3.12.2 Not specified
CNA Oscal-compass Compliance-trestle affected >= 4.0.0, < 4.0.3 Not specified

References

ReferenceSourceLinkTags
github.com/oscal-compass/compliance-trestle/commit/7d107b3ac53caca7bde97... [email protected] github.com
github.com/oscal-compass/compliance-trestle/security/advisories/GHSA-gg2... 134c704f-9b21-4f2e-91b3-4a467353bcc0 github.com
github.com/pypa/advisory-database/tree/main/vulns/compliance-trestle/PYS... [email protected] github.com
github.com/oscal-compass/compliance-trestle/commit/247fcce289f60103f3d8e... [email protected] github.com
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