{"id":"CVE-2026-112270","published":"2026-10-19T14:17:04.627","lastModified":"2026-10-19T17:17:14.960","description":"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.","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/staging_handler.py#L505-L548","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/issues/45014","tags":[]},{"url":"https://www.vulncheck.com/advisories/sglang-through-0.5.22-memory-exhaustion-via-mooncake-staging-rsp-chunk-idx","tags":[]}],"exploitRefs":[{"url":"https://github.com/sgl-project/sglang/blob/v0.5.22/python/sglang/srt/disaggregation/common/staging_handler.py#L505-L548","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/issues/45014","tags":[]}],"hasPoc":true,"ai":null}