{"id":"CVE-2026-112269","published":"2026-10-19T14:17:04.467","lastModified":"2026-10-19T19:17:27.590","description":"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.","cvssScore":6.5,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cwes":["CWE-770"],"vendors":[],"products":[],"references":[{"url":"https://github.com/sgl-project/sglang/blob/v0.5.22/python/sglang/srt/disaggregation/common/utils.py#L47-L69","tags":[]},{"url":"https://github.com/sgl-project/sglang/blob/v0.5.22/python/sglang/srt/disaggregation/mooncake/conn.py#L2885-L2935","tags":[]},{"url":"https://github.com/sgl-project/sglang/blob/v0.5.22/python/sglang/srt/disaggregation/mooncake/conn.py#L889-L909","tags":[]},{"url":"https://github.com/sgl-project/sglang/issues/45012","tags":[]},{"url":"https://www.vulncheck.com/advisories/sglang-through-0.5.22-memory-exhaustion-via-unauthenticated-mooncake-decode-registrations","tags":[]},{"url":"https://github.com/sgl-project/sglang/issues/45012","tags":[]}],"exploitRefs":[{"url":"https://github.com/sgl-project/sglang/blob/v0.5.22/python/sglang/srt/disaggregation/common/utils.py#L47-L69","tags":[]},{"url":"https://github.com/sgl-project/sglang/blob/v0.5.22/python/sglang/srt/disaggregation/mooncake/conn.py#L2885-L2935","tags":[]},{"url":"https://github.com/sgl-project/sglang/blob/v0.5.22/python/sglang/srt/disaggregation/mooncake/conn.py#L889-L909","tags":[]},{"url":"https://github.com/sgl-project/sglang/issues/45012","tags":[]},{"url":"https://github.com/sgl-project/sglang/issues/45012","tags":[]}],"hasPoc":true,"ai":null}