{"id":"CVE-2025-8849","aliases":["EUVD-2025-37228","GHSA-2q3x-64cr-5mp5"],"status":"published","title":"Denial of Service in danny-avila/librechat","description":"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.","severity":{"version":"3.0","score":5.4,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00347,"percentile":0.28579,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-400"],"published":"2025-10-30T23:42:41Z","modified":"2026-10-28T02:30:51Z","products":[{"vendor":"danny-avila","product":"danny-avila/librechat"},{"vendor":"librechat","product":"librechat"}],"references":[{"url":"https://huntr.com/bounties/e9d9404c-cd19-4226-a580-9cba14b7d7d6","tags":["Exploit","Mitigation","Third Party Advisory","web"]},{"url":"https://github.com/danny-avila/librechat/commit/edf33bedcbb08c33e59df76f06454ed7efd896f9","tags":["Patch","fix"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-8849","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-2q3x-64cr-5mp5"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/8xxx/CVE-2025-8849.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2025-8849","title":"Denial of Service in danny-avila/librechat","description":"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.","status":"published","published":"2025-10-30T23:42:41.552Z","modified":"2025-10-31T15:09:34.057Z","cvss":[{"version":"3.0","score":5.4,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L","level":"medium","assessor":"cna"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T14:32:38.025852Z"}],"euvd":[{"id":"EUVD-2025-37228","description":"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.","status":"published","published":"2025-10-30T23:42:41Z","modified":"2025-10-31T15:09:34Z","cvss":[{"version":"3.0","score":5.4,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L","level":"medium"}],"updated_at":"2026-11-02T19:49:35.368666Z"}],"ghsa":[{"id":"GHSA-2q3x-64cr-5mp5","title":"LibreChat version 0.7.9 is vulnerable to a Denial of Service (DoS) attack due to unbounded...","description":"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.","status":"published","published":"2025-10-31T00:30:35Z","modified":"2025-10-31T00:30:42Z","cvss":[{"version":"3.0","score":5.4,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L","level":"medium"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T15:04:15.956958Z"}],"nvd":[{"id":"CVE-2025-8849","description":"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.","status":"published","published":"2025-10-31T00:15:37.48Z","modified":"2026-10-07T21:10:00.2Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"3.0","score":5.4,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L","level":"medium","assessor":"secondary"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T14:11:41.607433Z"}],"osv":[{"id":"CVE-2025-8849","title":"Denial of Service in danny-avila/librechat","description":"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.","status":"published","published":"2025-10-30T23:42:41.552Z","modified":"2026-10-28T02:30:51.487007352Z","cvss":[{"version":"3.0","score":5.4,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L","level":"medium"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T15:44:53.185592Z"}]}}