HIGHCVSS 8.7

CVE-2026-93688

CVE-2026-93688 updated by NVD

Modified: 2026-09-21
Sources: nvd

Summary

SGLang through 0.5.19 in prefill/decode disaggregation mode with Mooncake KV transfer backend fails to validate bootstrap_room values, allowing unbounded transfer state allocation. Unauthenticated attackers can reach the decode engine's POST /generate endpoint and submit arbitrary bootstrap_room values to exhaust prefill process memory until out-of-memory termination.

References

https://nvd.nist.gov/vuln/detail/CVE-2026-93688

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