CVE-2026-109225
High
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.
SeverityHigh
CVSS7.5
Exploit probability—
ProductSgl-project Sglang
PublishedOct 12, 2026
First seenOct 12, 2026
Weakness typeCWE-770Allocation of resources without limits
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| sgl-project sglang | v ≤ 0.5.21 | — |
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