{"id":"CVE-2023-43642","aliases":["GHSA-55g7-9cwv-5qfv"],"url":"https://o3.security/vulnerability/CVE-2023-43642","summary":"Missing upper bound check on chunk length in snappy-java ","details":"snappy-java is a Java port of the snappy, a fast C++ compresser/decompresser developed by Google. The SnappyInputStream was found to be vulnerable to Denial of Service (DoS) attacks when decompressing data with a too large chunk size. Due to missing upper bound check on chunk length, an unrecoverable fatal error can occur. All versions of snappy-java including the latest released version 1.1.10.3 are vulnerable to this issue. A fix has been introduced in commit `9f8c3cf74` which will be included in the 1.1.10.4 release. Users are advised to upgrade. Users unable to upgrade should only accept compressed data from trusted sources.","published":"2023-09-25T19:03:49.145Z","modified":"2026-07-22T02:49:57.634146Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":1,"affectedPackages":[{"ecosystem":"Maven","name":"org.xerial.snappy:snappy-java","fixedVersion":"1.1.10.4"}],"fix":{"url":"https://github.com/xerial/snappy-java/commit/9f8c3cf74223ed0a8a834134be9c917b9f10ceb5","label":"xerial/snappy-java@9f8c3cf"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/43xxx/CVE-2023-43642.json"},{"type":"ADVISORY","url":"https://github.com/xerial/snappy-java/security/advisories/GHSA-55g7-9cwv-5qfv"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-43642"},{"type":"FIX","url":"https://github.com/xerial/snappy-java/commit/9f8c3cf74223ed0a8a834134be9c917b9f10ceb5"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-22T02:49:57.634146Z"}}