CVE-2024-34391Public exploitNetwork attack vector

Process crash via entity attribute type confusion

Published May 2, 2024 · Updated Nov 25, 2024

Type confusion in libxmljs 1.0.11 and earlier allows remote attackers to crash Node.js processes by supplying crafted XML. The SWIG _wrap__xmlNode_properties_get getter treats an xmlEntity as an xmlNode, reading attacker-controlled entity length as an attribute pointer. Reachability requires a consuming application to parse attacker-controlled XML and call attrs() on the entity declaration; code execution is limited to 32-bit systems using XML_PARSE_HUGE.

CVSS severity8.1
High
EPSS probability1.10%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Type confusion in libxmljs 1.0.11 and earlier allows remote attackers to crash Node.js processes by supplying crafted XML. The SWIG _wrap__xmlNode_properties_get getter treats an xmlEntity as an xmlNode, reading attacker-controlled entity length as an attribute pointer. Reachability requires a consuming application to parse attacker-controlled XML and call attrs() on the entity declaration; code execution is limited to 32-bit systems using XML_PARSE_HUGE.

The record

CVE
CVE-2024-34391
Published
May 2, 2024
Updated
Nov 25, 2024
Vendor
libxmljs
Product
libxmljs
Classifications
CWE-843
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 2, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 25, 2024Record 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=0 <=1.0.11

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

libxmljs · libxmljsversion=0 <=1.0.11

Published CVSS scores

8.1JFrogCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
9.2GitHubCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/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.

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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-843Access of Resource Using Incompatible Type ('Type Confusion')

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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