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.
Published: 2026-07-02
Score: 7.5 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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Tracking

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Advisories

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History

Fri, 03 Jul 2026 12:15:00 +0000

Type Values Removed Values Added
Title org.eclipse.parsson/parsson: Eclipse Parsson: Denial of Service via uncontrolled resource consumption in JSON parsing
References
Metrics threat_severity

None

threat_severity

Important


Fri, 03 Jul 2026 00:30:00 +0000

Type Values Removed Values Added
Title Eclipse Parsson Denial of Service via Unbounded JSON Parsing

Thu, 02 Jul 2026 16:00:00 +0000

Type Values Removed Values Added
Title Eclipse Parsson Denial of Service via Unbounded JSON Parsing

Thu, 02 Jul 2026 10:15:00 +0000

Type Values Removed Values Added
First Time appeared Eclipse
Eclipse parsson
Vendors & Products Eclipse
Eclipse parsson

Thu, 02 Jul 2026 08:30:00 +0000

Type Values Removed Values Added
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.
Weaknesses CWE-400
CWE-770
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: eclipse

Published:

Updated: 2026-07-02T12:27:25.923Z

Reserved: 2026-05-26T10:34:17.499Z

Link: CVE-2026-9563

cve-icon Vulnrichment

No data.

cve-icon NVD

No data.

cve-icon Redhat

Severity : Important

Publid Date: 2026-07-02T07:33:25Z

Links: CVE-2026-9563 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-07-07T01:00:04Z

Weaknesses