CVE-2024-34394

libxmljs2 namespaces type confusion RCE

8.1 High

libxmljs2 is vulnerable to a type confusion vulnerability when parsing a specially crafted XML while invoking the namespaces() function (which invokes XmlNode::get_local_namespaces()) on a grand-child of a node that refers to an entity. This vulnerability can lead to denial of service and remote code execution.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: High
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

0.99%Up 0.9 points since May 3, 2024

What each source reports

CVE List Score used 8.1

libxmljs2 namespaces type confusion RCE

Record: CVE-2024-34394
CVSS 3.1: 8.1 HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-843
Updated: 2026-11-02

EUVDEUVD-2024-1484 8.1

Record: EUVD-2024-1484
CVSS 3.1: 8.1 HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

GitHub AdvisoriesGHSA-78h3-pg4x-j8cv 9.2

libxmljs2 vulnerable to type confusion when parsing specially crafted XML

libxmljs2 is vulnerable to a type confusion vulnerability when parsing a specially crafted XML while invoking the namespaces() function (which invokes XmlNode::get_local_namespaces()) on a grand-child of a node that refers to an entity. This vulnerability can lead to denial of service and remote code execution.

Record: GHSA-78h3-pg4x-j8cv
CVSS 4.0: 9.2 CriticalCVSS: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 3.1: 8.1 HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-843
Updated: 2026-11-02

NVD 8.1

Record: CVE-2024-34394
CVSS 3.1: 8.1 HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-843
Updated: 2026-11-02

OSV 8.1

libxmljs2 namespaces type confusion RCE

Record: CVE-2024-34394
CVSS 3.1: 8.1 HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-843
Updated: 2026-11-02

OSVGHSA-78h3-pg4x-j8cv 9.2

libxmljs2 vulnerable to type confusion when parsing specially crafted XML

Record: GHSA-78h3-pg4x-j8cv
CVSS 4.0: 9.2 CriticalCVSS: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 3.1: 8.1 HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-843
Updated: 2026-11-02

Affected products

marudor libxmljs2

Affected packages

Affected packages
Package	Affected	Fixed
`libxmljs2` npm	through 0.35.0	None known

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2024-34394 is a high vulnerability (CVSS 8.1) in Marudor Libxmljs2, published May 2, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.99%, the 62nd percentile. No source names a fixed version.