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CVE-2026-41675— xmldom: XML node injection through unvalidated processing instruction serialization

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 0.9.10之前版本、0.8.13之前版本和xmldom 0.6.0及之前版本存在安全漏洞，该漏洞源于序列化处理指令数据时未验证或中和PI结束序列?>，可能导致攻击者提前终止处理指令并注入任意XML节点。

CVSS 8.7 · High EPSS 0.63% · P49

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 >= 0.9.0, < 0.9.10 affected
@xmldom/xmldom < 0.8.13 affected
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I. Basic Information for CVE-2026-41675

Vulnerability Information
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Vulnerability Title
xmldom: XML node injection through unvalidated processing instruction serialization
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/xmldom prior to versions 0.9.10 and 0.8.13 and xmldom version 0.6.0 and prior, the package allows attacker-controlled processing instruction data to be serialized into XML without validating or neutralizing the PI-closing sequence ?>. As a result, an attacker can terminate the processing instruction early and inject arbitrary XML nodes into the serialized output. This issue has been patched in versions @xmldom/xmldom versions 0.9.10 and 0.8.13.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA: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 0.9.10之前版本、0.8.13之前版本和xmldom 0.6.0及之前版本存在安全漏洞，该漏洞源于序列化处理指令数据时未验证或中和PI结束序列?>，可能导致攻击者提前终止处理指令并注入任意XML节点。
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-2026-41675

# POC Description Source Link Shenlong Link
AI-Generated POC Verified env Premium
Reproduced successfully in a real sandbox · Below is the actual recording of building the environment and exploiting the vulnerability.
Reproduction recording is a Pro+ exclusive
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claude_code · 8063 chars
GitHub 复现环境（可 clone 直接跑）
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III. Intelligence Information for CVE-2026-41675

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Patches & Fixes for CVE-2026-41675 (1)

Vendor Advisories for CVE-2026-41675 (1)

Vendor Pages for CVE-2026-41675 (1)

Other References for CVE-2026-41675 (1)

Same Patch Batch · xmldom · 2026-05-07 · 4 CVEs total

CVE-2026-41673 8.7 HIGH xmldom: Denial of service via uncontrolled recursion in XML serialization
CVE-2026-41672 8.7 HIGH xmldom: XML node injection through unvalidated comment serialization
CVE-2026-41674 8.7 HIGH xmldom: XML injection through unvalidated DocumentType serialization

IV. Related Vulnerabilities

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

V. Comments for CVE-2026-41675

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