{"id":"CVE-2026-109225","revision":"f31b68bc879e4a7fbb03d8cd177fc468","records":[{"revision":"f31b68bc879e4a7fbb03d8cd177fc468","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-109225","aliases":[],"title":"SGLang through 0.5.21 Memory Exhaustion DoS via /v1/audio/transcriptions Upload","description":"SGLang through 0.5.21 contains an unbounded memory allocation vulnerability that allows unauthenticated remote attackers to exhaust memory by uploading oversized files to /v1/audio/transcriptions. Attackers can send concurrent large multipart uploads, which are fully read into memory before validation, to crash the HTTP/tokenizer worker and deny service.","state":0,"publishedAt":"2026-10-12T14:04:29.986+00:00","modifiedAt":"2026-10-13T16:57:32.583+00:00","affected":[{"ecosystem":"https://pypi.org/project/sglang","name":"sglang","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"sgl-project\",\n                    \"product\": \"sglang\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"packageURL\": \"pkg:pypi/sglang\",\n                    \"repo\": \"https://github.com/sgl-project/sglang\",\n                    \"collectionURL\": \"https://pypi.org/project/sglang\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\",\n                            \"lessThanOrEqual\": \"0.5.21\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","score":8.7,"severity":"HIGH"},{"system":"CVSS 3.1","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/sgl-project/sglang/issues/43709","https://github.com/sgl-project/sglang/blob/v0.5.21/python/sglang/srt/entrypoints/http_server.py#L1847-L1871","https://github.com/sgl-project/sglang","https://www.vulncheck.com/advisories/sglang-through-0.5.21-memory-exhaustion-dos-via-v1-audio-transcriptions-upload"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-109225","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-109225","identifiers":["CVE-2026-109225"]},"retained":false,"historicalAffected":[]}],"coverage":[]}