{"id":"CVE-2026-44829","revision":"3f1b1c3cfc764ee3b6f8c89a028bc538","records":[{"revision":"3f1b1c3cfc764ee3b6f8c89a028bc538","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-44829","aliases":[],"title":"Gotenberg: Path traversal in zip entry name via Windows-style separators in upload filename","description":"Gotenberg is a Docker-powered stateless API for PDF files. In 8.32.0 and earlier, filename handling in pkg/modules/api/context.go uses filepath.Base on Linux, which does not treat backslashes as path separators, so a multipart filename containing Windows-style parent directory components survives sanitization. The original filename flows through ctx.diskToOriginal and the multi-output PDF routes into archives.FilesFromDisk and archives.Zip.Archive as the generated zip entry name. A remote attacker can submit a name such as ........\\Windows\\System32\\evil.pdf through an upload or an upstream downloadFrom Content-Disposition header, and a Windows archive extractor can write the resulting file outside the intended extraction directory. The affected paths include /forms/pdfengines/split and other multi-output PDF, LibreOffice, and conversion routes, and exploitation can cause arbitrary file writes on a downstream Windows system when a user or process extracts the returned archive. This issue is fixed in version 8.33.0.","state":0,"publishedAt":"2026-08-19T14:35:06.966+00:00","modifiedAt":"2026-08-19T18:19:27.164+00:00","affected":[{"ecosystem":"Vendor product","name":"gotenberg","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"gotenberg\",\n                    \"product\": \"gotenberg\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 8.33.0\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:H/A:L","score":8.8,"severity":"HIGH"}],"references":["https://github.com/gotenberg/gotenberg/security/advisories/GHSA-hwc4-gmrw-5222","https://github.com/gotenberg/gotenberg/issues/662","https://github.com/gotenberg/gotenberg/commit/93d0103585372433e18b351bb16edf4c383932d3","https://github.com/gotenberg/gotenberg/releases/tag/v8.33.0"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-44829","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-44829","identifiers":["CVE-2026-44829"]},"retained":false,"historicalAffected":[]}],"coverage":[]}