{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-97359", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-09-24T13:24:49.939Z", "datePublished": "2026-09-24T13:28:18.818Z", "dateUpdated": "2026-09-24T13:28:18.818Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-09-24T13:28:18.818Z" }, "title": "HFS2 2.4.0 RCE via Multipart Upload Filename Template Injection", "descriptions": [ { "lang": "en", "value": "HFS2 version 2.4.0 and earlier contains a template injection vulnerability in the multipart upload handler that allows unauthenticated attackers to achieve remote code execution by embedding malicious template syntax in a filename. Attackers can craft a filename containing a closing template quoting sequence followed by an exec macro, which bypasses the authorization check in the dispatcher to execute arbitrary commands on the underlying host system." } ], "tags": [ "x_open-source", "unsupported-when-assigned" ], "datePublic": "2026-09-24T00:00:00.000Z", "problemTypes": [ { "descriptions": [ { "lang": "en", "cweId": "CWE-1336", "description": "Improper Neutralization of Special Elements Used in a Template Engine", "type": "CWE" } ] } ], "affected": [ { "defaultStatus": "unaffected", "vendor": "rejetto", "product": "hfs2", "packageURL": "pkg:github/rejetto/hfs2", "repo": "https://github.com/rejetto/hfs2", "versions": [ { "status": "affected", "version": "2.0.0", "versionType": "semver", "lessThanOrEqual": "2.4.0" } ] } ], "cpeApplicability": [ { "operator": "OR", "nodes": [ { "operator": "OR", "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:a:rejetto:hfs2:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.0.0", "versionEndIncluding": "2.4.0" } ] } ] } ], "metrics": [ { "format": "CVSS", "scenarios": [ { "lang": "en", "value": "GENERAL" } ], "cvssV4_0": { "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "subConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "subIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subAvailabilityImpact": "HIGH", "exploitMaturity": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "version": "4.0", "baseSeverity": "CRITICAL", "baseScore": 10, "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H" } }, { "format": "CVSS", "scenarios": [ { "lang": "en", "value": "GENERAL" } ], "cvssV3_1": { "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "version": "3.1", "baseSeverity": "CRITICAL", "baseScore": 10, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H" } } ], "references": [ { "url": "https://github.com/wgetnz/hfs2/blob/master/advisories/hfs2-upload-filename-template-injection/README.md", "tags": [ "technical-description", "exploit" ] }, { "url": "https://www.vulncheck.com/advisories/hfs2-rce-via-multipart-upload-filename-template-injection", "name": "VulnCheck Advisory", "tags": [ "third-party-advisory" ] } ], "credits": [ { "lang": "en", "value": "wgetnz", "type": "finder" }, { "lang": "en", "value": "VulnCheck", "type": "coordinator" } ], "source": { "discovery": "UNKNOWN" }, "x_generator": { "engine": "vulncheck" } } } }