HIGH 7.1 NVD
CVE-2026-112270
SGLang through 0.5.22 with the Mooncake disaggregation backend contains an uncontrolled memory allocation vulnerability in handle_staging_rsp() that lets unauth
SGLang through 0.5.22 with the Mooncake disaggregation backend contains an uncontrolled memory allocation vulnerability in handle_staging_rsp() that lets unauthenticated network-adjacent attackers exhaust Prefill memory. Attackers can obtain the rank address from the /route endpoint and send STAGING_RSP messages with huge chunk_idx values under fresh room IDs, causing the scheduler to be OOM-killed.
References
- https://github.com/sgl-project/sglang/blob/v0.5.22/python/sglang/srt/disaggregation/common
- https://github.com/sgl-project/sglang/blob/v0.5.22/python/sglang/srt/disaggregation/moonca
- https://github.com/sgl-project/sglang/issues/45014
- https://www.vulncheck.com/advisories/sglang-through-0.5.22-memory-exhaustion-via-mooncake-
This high severity vulnerability with a CVSS score of 7.1 was published on 2026-10-19 via NVD.
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