Server-Side Request Forgery in TurboDocx Affects Document Generation Functionality
CVE-2026-110718

8.2HIGH

Key Information:

Vendor

Turbodocx

Status
Html-to-docx
Vendor
CVE Published:
14 October 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-110718?

The TurboDocx html-to-docx tool, up to version 1.23.1, contains a server-side request forgery vulnerability that can be exploited by attackers. By supplying crafted HTML with specific img src attributes, malicious users can trick the server into fetching internal URLs. This includes potential access to loopback addresses, private networks, or cloud metadata services. The vulnerability occurs due to the inadequate validation of URLs using the isValidUrl() function, allowing unauthorized access to responses that become part of the generated DOCX files. Users and admins are advised to assess their usage of this library and implement necessary security measures.

Affected Version(s)

html-to-docx 0 <= 1.23.1

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-110718 - Proof of Concept

References

https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/H1t1Bbpjfx
technical-descriptionexploit
https://github.com/TurboDocx/html-to-docx/blob/ff08e5687a...
technical-description
https://github.com/TurboDocx/html-to-docx
product

CVSS V4

Score:
8.2
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
High
Attack Required:
Physical
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

hieuPenguinnn
.