CVE-2026-75140: Allocation of Resources Without Limits or Throttling in jhy soup
jsoup versions up to 1.23.1 contain a vulnerability in the XmlTreeBuilder component that allows remote attackers to cause excessive memory consumption by submitting deeply nested XML documents with uniquely-namespaced elements. This leads to quadratic time and memory complexity, potentially triggering an OutOfMemoryError and terminating the application.
AI Analysis
Technical Summary
CVE-2026-75140 is a resource exhaustion vulnerability in jsoup's XmlTreeBuilder prior to version 1.23.2. The issue arises because the builder copies the entire inherited namespace map on every start element, causing quadratic growth in memory and processing time when parsing deeply nested XML with unique namespaces. An attacker can exploit this by crafting a malicious XML document that exhausts the JVM heap memory, resulting in an OutOfMemoryError and application termination.
Potential Impact
Successful exploitation can cause denial of service by exhausting JVM heap memory, leading to application crashes or termination. There is no indication of code execution or data breach from the provided information.
Mitigation Recommendations
A fix is available in jsoup version 1.23.2 as indicated by the commit 862ba2f. Users should upgrade to version 1.23.2 or later to remediate this vulnerability. No other mitigation details are provided.
CVE-2026-75140: Allocation of Resources Without Limits or Throttling in jhy soup
Description
jsoup versions up to 1.23.1 contain a vulnerability in the XmlTreeBuilder component that allows remote attackers to cause excessive memory consumption by submitting deeply nested XML documents with uniquely-namespaced elements. This leads to quadratic time and memory complexity, potentially triggering an OutOfMemoryError and terminating the application.
CVSS v4.0
Score 8.7high
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-75140 is a resource exhaustion vulnerability in jsoup's XmlTreeBuilder prior to version 1.23.2. The issue arises because the builder copies the entire inherited namespace map on every start element, causing quadratic growth in memory and processing time when parsing deeply nested XML with unique namespaces. An attacker can exploit this by crafting a malicious XML document that exhausts the JVM heap memory, resulting in an OutOfMemoryError and application termination.
Potential Impact
Successful exploitation can cause denial of service by exhausting JVM heap memory, leading to application crashes or termination. There is no indication of code execution or data breach from the provided information.
Mitigation Recommendations
A fix is available in jsoup version 1.23.2 as indicated by the commit 862ba2f. Users should upgrade to version 1.23.2 or later to remediate this vulnerability. No other mitigation details are provided.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-08-17T18:39:57.661Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a87265dacd9273b49d54f63
Added to database: 08/20/2026, 16:07:57 UTC
Last enriched: 08/20/2026, 16:22:04 UTC
Last updated: 08/20/2026, 16:55:32 UTC
Views: 6
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