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High · 7.5 CVE-2026-15978 EUVD-2026-51266GHSA-x6x2-r266-cx9p

CVE-2026-15978

Published Jul 30, 2026 · Updated Jul 31, 2026 · Assigned by certcc

Description

SGLang contains a model weight exfiltration vulnerability when no API keys are configured, as SGLang will expose two endpoints that allow a remote attacker to trigger distributed weight broadcasting using NCCL and then triggering data transfer, attackers can exfiltrate all model weights.

Affected products

VendorProductAffectedFixed
SGLang SGLang ≤ v0.5.15 —

References