{"cve":"CVE-2023-6038","nvd":{"published":"2023-11-16T17:15:09.373","modified":"2026-06-17T06:49:55.243","status":"Modified","description":"A Local File Inclusion (LFI) vulnerability exists in the h2o-3 REST API, allowing unauthenticated remote attackers to read arbitrary files on the server with the permissions of the user running the h2o-3 instance. This issue affects the default installation and does not require user interaction. The vulnerability can be exploited by making specific GET or POST requests to the ImportFiles and ParseSetup endpoints, respectively. This issue was identified in version 3.40.0.4 of h2o-3.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","score":7.5},"cwes":["CWE-862"],"references":["https://huntr.com/bounties/380fce33-fec5-49d9-a101-12c972125d8c","https://huntr.com/bounties/380fce33-fec5-49d9-a101-12c972125d8c"],"products":["h2o:h2o"],"source":"nvd","synced_at":"2026-10-19T21:42:07.670898610+00:00"},"epss":{"cve":"CVE-2023-6038","score":0.0434,"percentile":0.9121,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-6mv8-95x5-xcq9","url":"https://osv.dev/vulnerability/GHSA-6mv8-95x5-xcq9","summary":"H2O local file inclusion vulnerability","modified":"2024-04-16T16:01:58.463024Z","packages":[{"ecosystem":"Maven","name":"ai.h2o:h2o-core","purl":"pkg:maven/ai.h2o/h2o-core","ranges":["<=3.40.0.4"],"fixed":[]}]}],"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."]}