What is CVE-2026-9563?

CVE-2026-9563 is a high-severity vulnerability in Eclipse Foundation Parsson, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2026-07-02.

How severe is CVE-2026-9563?

High severity. CVSS v3 base score is 7.5 out of 10.

Resource exhaustion in Eclipse Foundation Parsson

CVE-2026-9563

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- contr…

Vulnerability class: DoS (Denial of Service)

EPSS: 0.004 (28.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Eclipse Foundation Parsson — versions 1.0.0

Weakness classification (CWE)

CWE-400 — Uncontrolled Resource Consumption
CWE-770 — Allocation of Resources Without Limits or Throttling

References

emo@eclipse.org
emo@eclipse.org
emo@eclipse.org
emo@eclipse.org
emo@eclipse.org

Frequently asked questions

What is CVE-2026-9563?: CVE-2026-9563 is a high-severity vulnerability in Eclipse Foundation Parsson, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2026-07-02.
How severe is CVE-2026-9563?: High severity. CVSS v3 base score is 7.5 out of 10.