{"apiVersion":"1.0","identifier":"CVE-2026-44829","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.","publishedAt":"2026-08-19T15:17:02","lastModifiedAt":"2026-08-19T19:17:16","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-44829","cvssScore":8.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:H/A:L","epssProbability":0.00372,"riskScore":0.91,"affectedProduct":"Gotenberg","affectedVersions":"<=8.32.0","vulnerabilityType":"Docker image","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-44829","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-44829","en":"https://www.redsauce.net/en/cves/CVE-2026-44829","fr":"https://www.redsauce.net/fr/cves/CVE-2026-44829","pt":"https://www.redsauce.net/pt/cves/CVE-2026-44829","de":"https://www.redsauce.net/de/cves/CVE-2026-44829","sk":"https://www.redsauce.net/sk/cves/CVE-2026-44829","el":"https://www.redsauce.net/el/cves/CVE-2026-44829"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-44829"}}