{"id":"CVE-2025-48956","summary":"vLLM API endpoints vulnerable to Denial of Service Attacks","details":"vLLM is an inference and serving engine for large language models (LLMs). From 0.1.0 to before 0.10.1.1, a Denial of Service (DoS) vulnerability can be triggered by sending a single HTTP GET request with an extremely large header to an HTTP endpoint. This results in server memory exhaustion, potentially leading to a crash or unresponsiveness. The attack does not require authentication, making it exploitable by any remote user. This vulnerability is fixed in 0.10.1.1.","aliases":["GHSA-rxc4-3w6r-4v47"],"modified":"2026-04-10T05:28:52.803606Z","published":"2025-08-21T14:41:03.889Z","related":["CGA-r4h9-4jh9-gh5g"],"database_specific":{"cwe_ids":["CWE-400"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/48xxx/CVE-2025-48956.json","cna_assigner":"GitHub_M"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/48xxx/CVE-2025-48956.json"},{"type":"ADVISORY","url":"https://github.com/vllm-project/vllm/security/advisories/GHSA-rxc4-3w6r-4v47"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-48956"},{"type":"FIX","url":"https://github.com/vllm-project/vllm/commit/d8b736f913a59117803d6701521d2e4861701944"},{"type":"FIX","url":"https://github.com/vllm-project/vllm/pull/23267"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/vllm-project/vllm","events":[{"introduced":"67d96c29fba9b72cb4c4edbc26211c208a00ebdd"},{"fixed":"1da94e673c257373280026f75ceb4effac80e892"}]}],"versions":["v0.1.0","v0.1.1","v0.1.2","v0.1.3","v0.1.4","v0.1.5","v0.1.6","v0.1.7","v0.10.0","v0.10.0rc1","v0.10.0rc2","v0.10.1","v0.10.1rc1","v0.2.0","v0.2.1","v0.2.2","v0.2.3","v0.2.4","v0.2.5","v0.2.6","v0.2.7","v0.3.0","v0.3.1","v0.3.2","v0.3.3","v0.4.0","v0.4.0.post1","v0.4.1","v0.4.2","v0.4.3","v0.5.0","v0.5.0.post1","v0.5.1","v0.5.2","v0.5.3","v0.5.3.post1","v0.5.4","v0.5.5","v0.6.0","v0.6.1","v0.6.1.post1","v0.6.1.post2","v0.6.2","v0.6.3","v0.6.3.post1","v0.6.4","v0.6.4.post1","v0.6.5","v0.6.6","v0.6.6.post1","v0.7.0","v0.7.1","v0.7.2","v0.7.3","v0.8.0rc1","v0.8.0rc2","v0.8.1","v0.8.2","v0.8.3rc1","v0.8.4","v0.9.0","v0.9.1","v0.9.1rc1","v0.9.1rc2","v0.9.2rc1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-48956.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}