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.
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Affected Vendors & Products
Advisories
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Fixes
Solution
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Workaround
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References
History
Mon, 12 Oct 2026 14:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | SGLang through 0.5.21 Memory Exhaustion DoS via /v1/audio/transcriptions Upload | |
| First Time appeared |
Lmsys
Lmsys sglang |
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| Weaknesses | CWE-770 | |
| CPEs | cpe:2.3:a:lmsys:sglang:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Lmsys
Lmsys sglang |
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| References |
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| Metrics |
cvssV3_1
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Projects
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Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-10-12T14:04:29.986Z
Reserved: 2026-10-12T13:46:26.547Z
Link: CVE-2026-109225
No data.
Status : Deferred
Published: 2026-10-12T14:17:11.580
Modified: 2026-10-12T14:17:11.700
Link: CVE-2026-109225
No data.
OpenCVE Enrichment
No data.
Weaknesses