{"schema":"threatline.record/2","record":{"id":"CVE-2026-109225","aliases":[],"summary":"SGLang through 0.5.21 Memory Exhaustion DoS via /v1/audio/transcriptions Upload","details":"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.","categories":["Unclassified"],"product":"sglang","vendor":"sgl-project","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-109225","source_modified_at":"2026-10-13T16:57:32.583Z","fetched_at":"2026-10-23T18:48:36.087640Z","product":"sglang","vendor":"sgl-project","versions":[{"version":"0","status":"affected","versionType":"semver","lessThanOrEqual":"0.5.21"}],"defaultStatus":"unaffected"}],"fixed_versions":[],"cvss":8.7,"severity":"High","kev":{"listed":false},"epss":{"probability":0.00428,"percentile":0.36041,"score_date":"2026-10-23"},"published_at":"2026-10-12T14:04:29.986Z","modified_at":"2026-10-13T16:57:32.583Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-109225","fetched_at":"2026-10-23T18:48:36.087640Z","source_modified_at":"2026-10-13T16:57:32.583Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-109225","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/sgl-project/sglang/issues/43709","tags":["issue-tracking"]},{"source":"CVE List","url":"https://github.com/sgl-project/sglang/blob/v0.5.21/python/sglang/srt/entrypoints/http_server.py#L1847-L1871","tags":["technical-description"]},{"source":"CVE List","url":"https://github.com/sgl-project/sglang","tags":["product"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/sglang-through-0.5.21-memory-exhaustion-dos-via-v1-audio-transcriptions-upload","tags":["third-party-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"none","automatable":"yes","technical_impact":"partial","assessed_at":"2026-10-13T16:22:19.170383Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-13T16:57:32.583Z","content_hash":"3f50379f948c39083263eced05e7a3800c3af476f2a4fef56abfd900d27660a2"}}