GHSA-9qhw-7fv2-2hgmHighCVSS 6.5
SGLang through 0.5.22 with the Mooncake disaggregation backend accepts unauthenticated decode...
🔗 CVE IDs covered (1)
📋 Description
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.
🔗 References (7)
- https://nvd.nist.gov/vuln/detail/CVE-2026-112269
- https://github.com/sgl-project/sglang/issues/45012
- https://github.com/sgl-project/sglang/blob/v0.5.22/python/sglang/srt/disaggregation/common/utils.py#L47-L69
- https://github.com/sgl-project/sglang/blob/v0.5.22/python/sglang/srt/disaggregation/mooncake/conn.py#L2885-L2935
- https://github.com/sgl-project/sglang/blob/v0.5.22/python/sglang/srt/disaggregation/mooncake/conn.py#L889-L909
- https://www.vulncheck.com/advisories/sglang-through-0.5.22-memory-exhaustion-via-unauthenticated-mooncake-decode-registrations
- https://github.com/advisories/GHSA-9qhw-7fv2-2hgm