CVE-2026-102634

HighCVSS 7.5/10Last modified Sep 29, 2026

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.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-694

Affected software

No affected versions have been published.

Timeline

Published: Sep 29, 2026
Last modified: Sep 29, 2026
NVD status: Deferred

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