SGLang through 0.5.20 in prefill/decode disaggregation mode fails to validate duplicate bootstrap_room fields in /generate requests with Mooncake KV transfer backend. Unauthenticated attackers can send concurrent requests with identical bootstrap_room values to crash scheduler processes or hang other users' requests until transfer timeout.
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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
Tue, 29 Sep 2026 16:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | SGLang through 0.5.20 in prefill/decode disaggregation mode fails to validate duplicate bootstrap_room fields in /generate requests with Mooncake KV transfer backend. Unauthenticated attackers can send concurrent requests with identical bootstrap_room values to crash scheduler processes or hang other users' requests until transfer timeout. | |
| Title | SGLang through 0.5.20 Denial of Service via Duplicate bootstrap_room | |
| First Time appeared |
Lmsys
Lmsys sglang |
|
| Weaknesses | CWE-694 | |
| CPEs | cpe:2.3:a:lmsys:sglang:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Lmsys
Lmsys sglang |
|
| References |
|
|
| Metrics |
cvssV3_1
|
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Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-09-29T17:33:09.537Z
Reserved: 2026-09-29T15:50:38.222Z
Link: CVE-2026-102634
No data.
Status : Deferred
Published: 2026-09-29T17:17:07.147
Modified: 2026-09-29T17:17:07.280
Link: CVE-2026-102634
No data.
OpenCVE Enrichment
No data.
Weaknesses