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

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-34601— xmldom: XML injection via unsafe CDATA serialization allows attacker-controlled markup insertion

Quick assessment

Affected
xmldom xmldom
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.

XMLDOM是jindw个人开发者的一个 W3C DOM for Node 的 JavaScript 实现。 XMLDOM 0.6.0及之前版本、0.8.12之前版本和0.9.9之前版本存在安全漏洞，该漏洞源于允许攻击者控制的字符串插入CDATASection节点，可能导致XML结构注入和业务逻辑操纵。

CVSS 7.5 · High EPSS 0.54% · P43

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 3

VendorProduct Version RangeStatus
xmldom xmldom xmldom <= 0.6.0 affected
@xmldom/xmldom < 0.8.12 affected
@xmldom/xmldom >= 0.9.0, < 0.9.9 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-34601

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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
xmldom: XML injection via unsafe CDATA serialization allows attacker-controlled markup insertion
Source: CVE Program / CVE List V5
Vulnerability Description
xmldom is a pure JavaScript W3C standard-based (XML DOM Level 2 Core) `DOMParser` and `XMLSerializer` module. In xmldom versions 0.6.0 and prior and @xmldom/xmldom prior to versions 0.8.12 and 0.9.9, xmldom/xmldom allows attacker-controlled strings containing the CDATA terminator ]]> to be inserted into a CDATASection node. During serialization, XMLSerializer emitted the CDATA content verbatim without rejecting or safely splitting the terminator. As a result, data intended to remain text-only became active XML markup in the serialized output, enabling XML structure injection and downstream business-logic manipulation. This issue has been patched in xmldom version 0.6.0 and @xmldom/xmldom versions 0.8.12 and 0.9.9.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
XML注入(XPath盲注)
Source: CVE Program / CVE List V5
Vulnerability Title
XMLDOM 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
XMLDOM是jindw个人开发者的一个 W3C DOM for Node 的 JavaScript 实现。 XMLDOM 0.6.0及之前版本、0.8.12之前版本和0.9.9之前版本存在安全漏洞，该漏洞源于允许攻击者控制的字符串插入CDATASection节点，可能导致XML结构注入和业务逻辑操纵。
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
xmldom xmldom xmldom <= 0.6.0 -

II. Public POCs for CVE-2026-34601

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 8096 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-2026-34601

请登录查看更多情报信息。

Patches & Fixes for CVE-2026-34601 (2)

Vendor Advisories for CVE-2026-34601 (1)

Vendor Pages for CVE-2026-34601 (1)

IV. Related Vulnerabilities

Same product: xmldom
Same vendor: xmldom
Same weakness: CWE-91

V. Comments for CVE-2026-34601

No comments yet

Leave a comment