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CVE-2026-9563

CVSS 7.5 · High EPSS 0.37% · P29

Possible ATT&CK Techniques 1AI

T1496 · Resource Hijacking

Affected Version Matrix 1

VendorProductVersion RangeStatus
Eclipse FoundationEclipse Parsson1.0.0≤ 1.1.7affected
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I. Basic Information for CVE-2026-9563

Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
In Eclipse Parsson published Maven Central artifacts before version 1.1.8, the JSON parser did not enforce a default maximum on the number of characters consumed while parsing a single JSON document. Applications that parse attacker- controlled JSON can be forced to consume excessive CPU and memory by processing very large documents, including large arrays, objects, strings, numbers, whitespace, or nested structures, resulting in a denial of service. Eclipse Parsson 1.1.8 introduces a configurable maximum parsing limit with a default limit of 15 million parser-consumed characters.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Eclipse Foundation Eclipse Parsson 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Eclipse Foundation Eclipse Parsson是Eclipse Foundation基金会的一系列实现 JSON 处理功能的实用程序。 Eclipse Foundation Eclipse Parsson 1.1.8之前版本存在资源管理错误漏洞，该漏洞源于JSON解析器未强制执行单个JSON文档解析时消耗字符数的默认最大值，可能导致应用程序在处理超大文档时消耗过多CPU和内存，造成拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
Eclipse FoundationEclipse Parsson 1.0.0 ~ 1.1.7 -

II. Public POCs for CVE-2026-9563

#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium
Qwen3.6-35B-A3B · 10357 chars
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III. Intelligence Information for CVE-2026-9563

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Patches & Fixes for CVE-2026-9563 (2)

Vendor Advisories for CVE-2026-9563 (1)

Vendor Pages for CVE-2026-9563 (1)

Other References for CVE-2026-9563 (1)

IV. Related Vulnerabilities

Same vendor: Eclipse Foundation
Same weakness: CWE-400

V. Comments for CVE-2026-9563

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