CVE-2026-41675Public exploitNetwork attack vector

XML node injection via verbatim PI serialization

Published May 7, 2026 · Updated May 7, 2026

XML injection in affected xmldom packages allows remote attackers to insert arbitrary nodes into serialized XML through crafted PI data. The createProcessingInstruction flow stores untrusted data unchanged, and XMLSerializer emits node.data verbatim, so ?> closes the PI early and turns the remaining payload into live markup. Exploitation requires an application to accept untrusted PI data and serialize it; affected releases are @xmldom/xmldom before 0.8.13 or 0.9.0 through 0.9.9, and xmldom 0.6.0 and earlier.

CVSS severity8.7
High
EPSS probability0.47%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

XML injection in affected xmldom packages allows remote attackers to insert arbitrary nodes into serialized XML through crafted PI data. The createProcessingInstruction flow stores untrusted data unchanged, and XMLSerializer emits node.data verbatim, so ?> closes the PI early and turns the remaining payload into live markup. Exploitation requires an application to accept untrusted PI data and serialize it; affected releases are @xmldom/xmldom before 0.8.13 or 0.9.0 through 0.9.9, and xmldom 0.6.0 and earlier.

The record

CVE
CVE-2026-41675
Published
May 7, 2026
Updated
May 7, 2026
Vendor
xmldom
Product
xmldom
Classifications
CWE-91
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 7, 2026CVE publishedPublication date reported by the CVE source.
  2. May 7, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=xmldom <= 0.6.0
  2. Affected versionversion=@xmldom/xmldom < 0.8.13
  3. Affected versionversion=@xmldom/xmldom >= 0.9.0, < 0.9.10

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

xmldom · xmldomversion=xmldom <= 0.6.0; version=@xmldom/xmldom < 0.8.13; version=@xmldom/xmldom >= 0.9.0, < 0.9.10

Published CVSS scores

8.7GitHubCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-91XML Injection (aka Blind XPath Injection)

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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