CVE-2026-9563 | In Eclipse Parsson published Maven Central artifacts before … | CVSS 7.5 HIGH

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.

Metadata

CVE ID: CVE-2026-9563
State: PUBLISHED
Assigner: eclipse
Reserved: 2026-05-26 10:34 UTC
Published: 2026-07-02 07:33 UTC
Last updated: 2026-07-02 07:33 UTC
Primary CWE: CWE-400
CWE-400 Uncontrolled Resource Consumption
Vendor / Product: Eclipse Foundation / Eclipse Parsson
Sources: cve.org · NVD

Severity & Metrics

7.5 HIGH CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products (1)

Vendor	Product	Platform	Versions
Eclipse Foundation	Eclipse Parsson	—	1.0.0 ≤ 1.1.7

Weakness (CWE)

CWE	Source	Description
CWE-400	cna	CWE-400 Uncontrolled Resource Consumption
CWE-770	cna	CWE-770 Allocation of Resources Without Limits or Throttling

CVSS scores (1)

Score	Severity	Version	Source	Vector
7.5	HIGH	3.1	cna	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References (5)