{"cve":"CVE-2023-4043","nvd":{"published":"2023-11-03T09:15:13.600","modified":"2026-06-17T06:36:58.630","status":"Modified","description":"In Eclipse Parsson before versions 1.1.4 and 1.0.5, Parsing JSON from untrusted sources can lead malicious actors to exploit the fact that the built-in support for parsing numbers with large scale in Java has a number of edge cases where the input text of a number can lead to much larger processing time than one would expect.\n\n\nTo mitigate the risk, parsson put in place a size limit for the numbers as well as their scale.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-834","CWE-20"],"references":["https://github.com/eclipse-ee4j/parsson/pull/100","https://gitlab.eclipse.org/security/vulnerability-reports/-/issues/13","https://github.com/eclipse-ee4j/parsson/pull/100","https://gitlab.eclipse.org/security/vulnerability-reports/-/issues/13"],"products":["eclipse:parsson"],"source":"nvd","synced_at":"2026-10-19T21:40:11.519948003+00:00"},"epss":{"cve":"CVE-2023-4043","score":0.00764,"percentile":0.55412,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-g8p6-p27c-52fx","url":"https://osv.dev/vulnerability/GHSA-g8p6-p27c-52fx","summary":"Eclipse Parsson Denial of Service vulnerability","modified":"2024-02-16T08:17:00.305225Z","packages":[{"ecosystem":"Maven","name":"org.eclipse.parsson:project","purl":"pkg:maven/org.eclipse.parsson/project","ranges":[">=1.1.0 <1.1.4"],"fixed":["1.1.4"]},{"ecosystem":"Maven","name":"org.eclipse.parsson:project","purl":"pkg:maven/org.eclipse.parsson/project","ranges":["<1.0.5"],"fixed":["1.0.5"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}