CVE-2026-112270 — SGLang through 0.5.22 Memory Exhaustion via Mooncake STAGING_RSP chunk_idx
SGLang through 0.5.22 with the Mooncake disaggregation backend contains an uncontrolled memory allocation vulnerability in handle_staging_rsp() that lets unauthenticated network…
Published: 2026-10-19 · CVSS: 7.1 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7