CVE-2026-75140

jsoup through 1.23.2, fixed in commit 862ba2f, contains an uncontrolled resource consumption vulnerability in XmlTreeBuilder that allows remote attackers to exhaust JVM heap memory by supplying a deeply nested XML document with uniquely-namespaced elements. The builder copies the entire inherited namespace map on every start element, causing quadratic time and memory complexity, which attackers can exploit to trigger an OutOfMemoryError and terminate the application.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/jhy/jsoup/commit/862ba2f1d48ee95609183dbcfc848c9fd7afc76a
https://github.com/jhy/jsoup/pull/2556
https://www.vulncheck.com/advisories/jsoup-uncontrolled-resource-consumption-in-xmltreebuilder

Configurations

No configuration.

History

18 Oct 2026, 20:10

Type	Values Removed	Values Added
Summary		(es) jsoup hasta la versión 1.23.2, corregido en el commit 862ba2f, contiene una vulnerabilidad de consumo de recursos no controlado en XmlTreeBuilder que permite a atacantes remotos agotar la memoria heap de la JVM al proporcionar un documento XML profundamente anidado con elementos con espacios de nombres únicos. El constructor copia el mapa completo de espacios de nombres heredados en cada elemento de inicio, causando una complejidad cuadrática de tiempo y memoria, que los atacantes pueden explotar para activar un OutOfMemoryError y terminar la aplicación.

Information

Published : 2026-08-20 16:18

Updated : 2026-10-18 20:10

NVD link : CVE-2026-75140

Mitre link : CVE-2026-75140

CVE.ORG link : CVE-2026-75140

JSON object : View

Products Affected

No product.

CWE

CWE-770

Allocation of Resources Without Limits or Throttling

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