CVE-2026-39859

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{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,10.25.3)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "liquidjs", "source": "cna", "vendor": "harttle"}, "product": "liquidjs", "vendor": "harttle"}], "analysis": {"en": {"generated_at": "2026-04-10T22:50:47.991586+00:00", "value": {"mitigation_remediation": ["Upgrade LiquidJS to 10.25.3 or later.", "If an upgrade is not immediately possible, change the root directory to a non\u2011empty, controlled location so that file loads are constrained to a safe path."], "summary": {"action": "Patch", "impact": "Arbitrary File Read"}, "threat_synthesis": {"affected_systems": "Affected users run Harttle\u2019s LiquidJS component, specifically versions 10.25.0 through 10.25.2. Versions after 10.25.3 include the fix. Projects that incorporate these earlier releases\u2014including npm packages or private forks\u2014are at risk unless the vulnerability has been mitigated by configuration or patching.", "description_and_impact": "LiquidJS, a plain\u2011JavaScript template engine used in Node.js projects, contains a flaw that bypasses the configured root directory when a template file is loaded with renderFile() or parseFile(). Because top\u2011level file loads do not enforce the root boundary, an instance that has an empty temporary directory as its root can return the contents of any file readable by the running process. If an attacker supplies a path that points outside the intended directory, the engine can expose sensitive configuration files, credentials, or other secrets, compromising data confidentiality and application integrity.", "risk_and_exploitability": "The CVSS score of 6.3 indicates medium severity, and the EPSS score of less than 1% suggests a low likelihood of widespread exploitation. The vulnerability is not listed in the CISA KEV catalog. Exploitation requires the application to invoke renderFile() or parseFile() with a path that escapes the root constraint, which can be achieved if the instance is configured with an empty root directory. Based on the description, it is inferred that an attacker could trigger the read by supplying a malicious template, either locally or remotely, depending on how the application exposes these functions."}}}}, "created": "2026-04-09T08:18:12.279934+00:00", "updated": "2026-04-13T14:25:03.822067+00:00", "vendors": ["harttle", "harttle$PRODUCT$liquidjs"]}