{"id":"CVE-2025-8849","summary":"Denial of Service in danny-avila/librechat","details":"LibreChat version 0.7.9 is vulnerable to a Denial of Service (DoS) attack due to unbounded parameter values in the `/api/memories` endpoint. The `key` and `value` parameters accept arbitrarily large inputs without proper validation, leading to a null pointer error in the Rust-based backend when excessively large values are submitted. This results in the inability to create new memories, impacting the stability of the service.","modified":"2026-08-12T03:51:33.337992050Z","published":"2025-10-30T23:42:41.552Z","database_specific":{"cna_assigner":"@huntr_ai","cwe_ids":["CWE-400"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/8xxx/CVE-2025-8849.json"},"references":[{"type":"WEB","url":"https://huntr.com/bounties/e9d9404c-cd19-4226-a580-9cba14b7d7d6"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/8xxx/CVE-2025-8849.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-8849"},{"type":"FIX","url":"https://github.com/danny-avila/librechat/commit/edf33bedcbb08c33e59df76f06454ed7efd896f9"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/danny-avila/librechat","events":[{"introduced":"bef5c26bed4e5053bdf1936d6ded2c77035c6ee5"},{"fixed":"edf33bedcbb08c33e59df76f06454ed7efd896f9"}],"database_specific":{"cpe":"cpe:2.3:a:librechat:librechat:0.7.9:-:*:*:*:*:*:*","extracted_events":[{"introduced":"0.7.9-NA"},{"last_affected":"0.7.9-NA"}],"source":["CPE_STRING","REFERENCES"]}}],"versions":["0.7.9-NA","v0.8.0-rc1","v0.7.9","librechat-1.8.9"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-8849.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L"}]}