Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2026-44829— Gotenberg: Path traversal in zip entry name via Windows-style separators in upload filename

Quick assessment

Affected
gotenberg gotenberg
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Gotenberg是Gotenberg团队开源的一个文档转换应用服务器。 Gotenberg 8.33.0之前版本存在路径遍历漏洞，该漏洞源于pkg/modules/api/context.go文件中的文件名处理在Linux环境下使用filepath.Base，未将反斜杠视为路径分隔符，导致包含Windows样式父目录组件的文件名绕过清理，远程攻击者可通过上传或Content-Disposition标头提交恶意文件名，当解压返回的压缩包时可能导致任意文件写入。

CVSS 8.8 · High EPSS 0.37% · P30

Affected Version Matrix 1

VendorProduct Version RangeStatus
gotenberg gotenberg < 8.33.0 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-44829

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Gotenberg: Path traversal in zip entry name via Windows-style separators in upload filename
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:H/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
Gotenberg 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Gotenberg是Gotenberg团队开源的一个文档转换应用服务器。 Gotenberg 8.33.0之前版本存在路径遍历漏洞，该漏洞源于pkg/modules/api/context.go文件中的文件名处理在Linux环境下使用filepath.Base，未将反斜杠视为路径分隔符，导致包含Windows样式父目录组件的文件名绕过清理，远程攻击者可通过上传或Content-Disposition标头提交恶意文件名，当解压返回的压缩包时可能导致任意文件写入。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
gotenberg gotenberg < 8.33.0 -

II. Public POCs for CVE-2026-44829

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 7606 chars
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
100+ AI POC generations per month

III. Intelligence Information for CVE-2026-44829

请登录查看更多情报信息。

Patches & Fixes for CVE-2026-44829 (1)

Vendor Advisories for CVE-2026-44829 (1)

Vendor Pages for CVE-2026-44829 (1)

Same Patch Batch · gotenberg · 2026-08-19 · 3 CVEs total

CVE-2026-45742 7.5 HIGH Gotenberg: Concurrent Execution using Shared Resource with Improper Synchronization ('Race
CVE-2026-45741 7.5 HIGH Gotenberg: SSRF deny-list bypass in IsPublicIP via IPv6 6to4 / NAT64 / site-local prefixes

IV. Related Vulnerabilities

Same product: gotenberg
Same vendor: gotenberg
Same weakness: CWE-22

V. Comments for CVE-2026-44829

No comments yet

Leave a comment