CVE WatchSep 29, 2026

CVE-2026-102634

SGLang through 0.5.20 in prefill/decode disaggregation mode fails to validate duplicate bootstrap_room fields in /generate requests with Moo

CVSS

7.5

High

EPSS

0.6%

p47

KEV

—

Exploit Today

0-100

Published: Sep 29, 2026 · Last modified: Sep 29, 2026 · CWE-694

EPSS · 30d

0.6%EPSS · 30 days0.6%

2026-09-302026-10-19

Technical 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.

Official references

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