HIGH 7.1 NVD
CVE-2026-112269
SGLang through 0.5.22 with the Mooncake disaggregation backend accepts unauthenticated decode registration messages on the Prefill rank ZMQ PULL socket, allowin
SGLang through 0.5.22 with the Mooncake disaggregation backend accepts unauthenticated decode registration messages on the Prefill rank ZMQ PULL socket, allowing denial of service. Network-adjacent attackers can send many registrations with unique mooncake_session_id values and large nested-buffer frames to exhaust Prefill memory until the scheduler is 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/blob/v0.5.22/python/sglang/srt/disaggregation/moonca
- https://github.com/sgl-project/sglang/issues/45012
- https://www.vulncheck.com/advisories/sglang-through-0.5.22-memory-exhaustion-via-unauthent
This high severity vulnerability with a CVSS score of 7.1 was published on 2026-10-19 via NVD.
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