EUVD-2026-83282

SGLang versions through 0.5.20 contain an unbounded memory allocation vulnerability in handlestagingreq that fails to validate chunkidx from ZMQ STAGINGREQ frames in prefill/decode disaggregation deployments. Attackers with access to the decode engine's internal ZMQ rank port can send a frame wit...

CVE-2026-93838 SGLang through 0.5.20 Unbounded Memory Allocation via STAGING_REQ chunk_idx

SGLang versions through 0.5.20 contain an unbounded memory allocation vulnerability in handlestagingreq that fails to validate chunkidx from ZMQ STAGINGREQ frames in prefill/decode disaggregation deployments. Attackers with access to the decode engine's internal ZMQ rank port can send a frame wit...

CVE-2026-93838 SGLang through 0.5.20 Unbounded Memory Allocation via STAGING_REQ chunk_idx

SGLang versions through 0.5.20 contain an unbounded memory allocation vulnerability in handlestagingreq that fails to validate chunkidx from ZMQ STAGINGREQ frames in prefill/decode disaggregation deployments. Attackers with access to the decode engine's internal ZMQ rank port can send a frame wit...

CVE-2026-93838

SGLang versions through 0.5.20 are vulnerable to unbounded memory allocation in handle_staging_req(), which fails to validate the chunk_idx field in ZMQ STAGING_REQ frames used in prefill/decode disaggregation deployments. An attacker with access to the decode engine's internal ZMQ rank port can ...

CVE-2026-93838: Allocation of Resources Without Limits or Throttling

SGLang versions through 0.5.20 contain an unbounded memory allocation vulnerability in handlestagingreq that fails to validate chunkidx from ZMQ STAGINGREQ frames in prefill/decode disaggregation deployments. Attackers with access to the decode engine's internal ZMQ rank port can send a frame wit...