CVE-2026-9563

MITRE NVD CVE.ORG JSON API Print: PDF PDF

Summary

CVECVE-2026-9563
StatePUBLISHED
Assignereclipse
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-07-02 09:16:19 UTC
Updated2026-07-02 17:44:12 UTC
DescriptionIn 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.

Risk And Classification

Primary CVSS: v3.1 7.5 HIGH from [email protected]

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

EPSS: 0.003660000 probability, percentile 0.286140000 (date 2026-07-05)

Problem Types: CWE-400 | CWE-770 | CWE-400 CWE-400 Uncontrolled Resource Consumption | CWE-770 CWE-770 Allocation of Resources Without Limits or Throttling

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
3.1CNACVSS7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Eclipse Foundation Eclipse Parsson affected 1.0.0 1.1.7 semver Not specified

References

ReferenceSourceLinkTags
github.com/eclipse-ee4j/parsson/commit/134e8d101aa74c8b9302d0cb62f6ccb49... [email protected] github.com
github.com/eclipse-ee4j/parsson/tree/1.1.8 [email protected] github.com
gitlab.eclipse.org/security/vulnerability-reports/-/work_items/444 134c704f-9b21-4f2e-91b3-4a467353bcc0 gitlab.eclipse.org
repo.maven.apache.org/maven2/org/eclipse/parsson/parsson/1.1.8 [email protected] repo.maven.apache.org
github.com/eclipse-ee4j/parsson/pull/169 [email protected] github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Mark Swatosh (en)

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