CVE-2026-9563
High · 7.5CVSS
7.5
EPSS
0.3%
Published
Jul 2, 2026
CISA due date
—
The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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