CVE-2026-112269 — SGLang through 0.5.22 Memory Exhaustion via Unauthenticated Mooncake Decode Registrations
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 servi…
Published: 2026-10-19 · CVSS: 7.1 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7