{"id":"CVE-2023-4043","aliases":["GHSA-g8p6-p27c-52fx"],"url":"https://o3.security/vulnerability/CVE-2023-4043","summary":"Parsson DoS when parsing numbers from untrusted sources","details":"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.\n\n\n","published":"2023-11-03T08:11:39.563Z","modified":"2026-08-12T03:51:30.132759747Z","cvss":{"score":5.9,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":{"score":0.00764,"percentile":0.52574,"asOf":"2026-08-19"},"cisaKev":null,"exploitsKnown":1,"affectedPackages":[{"ecosystem":"Maven","name":"org.eclipse.parsson:project","fixedVersion":"1.1.4"},{"ecosystem":"Maven","name":"org.eclipse.parsson:project","fixedVersion":"1.0.5"}],"fix":{"url":"https://github.com/eclipse-ee4j/parsson/pull/100","label":"eclipse-ee4j/parsson#100"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/4xxx/CVE-2023-4043.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-4043"},{"type":"REPORT","url":"https://gitlab.eclipse.org/security/vulnerability-reports/-/issues/13"},{"type":"FIX","url":"https://github.com/eclipse-ee4j/parsson/pull/100"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:30.132759747Z"}}