GHSA-mjgp-hgfr-77jqHighCVSS 7.5
SGLang through 0.5.20 in prefill/decode disaggregation mode fails to validate duplicate...
🔗 CVE IDs covered (1)
📋 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.
🔗 References (9)
- https://nvd.nist.gov/vuln/detail/CVE-2026-102634
- https://github.com/sgl-project/sglang/issues/40125
- https://github.com/sgl-project/sglang
- https://github.com/sgl-project/sglang/blob/v0.5.20/python/sglang/srt/disaggregation/common/conn.py#L392-L393
- https://github.com/sgl-project/sglang/blob/v0.5.20/python/sglang/srt/disaggregation/decode.py#L942
- https://github.com/sgl-project/sglang/blob/v0.5.20/python/sglang/srt/disaggregation/mooncake/conn.py#L2760-L2764
- https://github.com/sgl-project/sglang/blob/v0.5.20/python/sglang/srt/managers/io_struct.py#L281
- https://www.vulncheck.com/advisories/sglang-through-0.5.20-denial-of-service-via-duplicate-bootstrap-room
- https://github.com/advisories/GHSA-mjgp-hgfr-77jq