{"schema":"threatline.record/2","record":{"id":"CVE-2026-112269","aliases":[],"summary":"SGLang through 0.5.22 Memory Exhaustion via Unauthenticated Mooncake Decode Registrations","details":"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.","categories":["Unclassified"],"product":"sglang","vendor":"sgl-project","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-112269","source_modified_at":"2026-10-19T18:06:43.345Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"sglang","vendor":"sgl-project","versions":[{"version":"0","lessThanOrEqual":"0.5.22","status":"affected","versionType":"semver"}],"defaultStatus":"unaffected"}],"fixed_versions":[],"cvss":7.1,"severity":"High","kev":{"listed":false},"epss":{"probability":0.00487,"percentile":0.41024,"score_date":"2026-10-23"},"published_at":"2026-10-19T13:55:17.954Z","modified_at":"2026-10-19T18:06:43.345Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-112269","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-19T18:06:43.345Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-112269","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/sgl-project/sglang/issues/45012","tags":["exploit"]},{"source":"CVE List","url":"https://github.com/sgl-project/sglang/blob/v0.5.22/python/sglang/srt/disaggregation/mooncake/conn.py#L2885-L2935","tags":["technical-description"]},{"source":"CVE List","url":"https://github.com/sgl-project/sglang/blob/v0.5.22/python/sglang/srt/disaggregation/mooncake/conn.py#L889-L909","tags":["technical-description"]},{"source":"CVE List","url":"https://github.com/sgl-project/sglang/blob/v0.5.22/python/sglang/srt/disaggregation/common/utils.py#L47-L69","tags":["technical-description"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/sglang-through-0.5.22-memory-exhaustion-via-unauthenticated-mooncake-decode-registrations","tags":["third-party-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"poc","automatable":"no","technical_impact":"partial","assessed_at":"2026-10-19T18:06:22.355686Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-19T18:06:43.345Z","content_hash":"b5df6bb30dacc4c3b7e8df5e236c98b8e386b8fcafbbae0edb9799387e48205c"}}