CVE-2026-112269
CVE-2026-112269 · SGLang through 0.5.22 Memory Exhaustion via Unauthenticated Mooncake Decode Registrations
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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.
CVSS 7.1 · Hoch · EPSS 0,5%
- Veröffentlicht
- Aktualisiert
Betroffene Produkte und Versionen
sglang
- Softwareversionen
- ≥ 0, ≤ 0.5.22: Betroffen (semver)
Keine Korrektur veröffentlicht
Originalquellen
- https://github.com/sgl-project/sglang/issues/45012
- 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://github.com/sgl-project/sglang/blob/v0.5.22/python/sglang/srt/disaggregation/common/utils.py#L47-L69
- https://www.vulncheck.com/advisories/sglang-through-0.5.22-memory-exhaustion-via-unauthenticated-mooncake-decode-registrations
- https://nvd.nist.gov/vuln/detail/CVE-2026-112269