{"id":"CVE-2025-59043","revision":"4892d435e41f4714a970859841586714","records":[{"revision":"4892d435e41f4714a970859841586714","observedAt":"2026-10-25T03:17:18.142+00:00","statement":{"source":"nvd","id":"CVE-2025-59043","aliases":[],"title":"OpenBao is an open source identity-based secrets management system. In OpenBao versions prior to 2.4.1, JSON objects after decoding may use significantly more memory than their serialized version. It is possible to craft a JSON payload to m…","description":"OpenBao is an open source identity-based secrets management system. In OpenBao versions prior to 2.4.1, JSON objects after decoding may use significantly more memory than their serialized version. It is possible to craft a JSON payload to maximize the factor between serialized memory usage and deserialized memory usage, similar to a zip bomb, with factors reaching approximately 35. This can be used to circumvent the max_request_size configuration parameter which is intended to protect against denial of service attacks. The request body is parsed into a map very early in the request handling chain before authentication, which means an unauthenticated attacker can send a specifically crafted JSON object and cause an out-of-memory crash. Additionally, for requests with large numbers of strings, the audit subsystem can consume large quantities of CPU. The vulnerability is fixed in version 2.4.1.","state":0,"publishedAt":"2025-10-17T16:15:38.763+00:00","modifiedAt":"2026-10-19T16:10:00.26+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · security-advisories@github.com · Secondary","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5,"severity":"HIGH"}],"references":["https://github.com/openbao/openbao/blob/788536bd3e10818a7b4fb00aac6affc23388e5a9/http/logical.go#L50","https://github.com/openbao/openbao/commit/d418f238bc99adc72c73109faf574cc2b672880c","https://github.com/openbao/openbao/pull/1756","https://github.com/openbao/openbao/security/advisories/GHSA-g46h-2rq9-gw5m"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-59043","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Analyzed","weaknesses":["CWE-400"],"productCriteria":["cpe:2.3:a:openbao:openbao:*:*:*:*:*:*:*:*"],"sourceDates":{"published":"2025-10-17T16:15:38.763","lastModified":"2026-10-19T16:10:00.260"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2025-59043","identifiers":["CVE-2025-59043"]},"retained":false,"historicalAffected":[]}],"coverage":[]}