High severity7.5NVD Advisory· Published Jul 30, 2026· Updated Aug 4, 2026
CVE-2026-15978
CVE-2026-15978
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
2Patches
Vulnerability mechanics
References
2- thoughts.apoorvdayal.com/posts/sglang-disclosures/nvdThird Party AdvisoryMitigation
- github.com/sgl-project/sglang/security/advisories/GHSA-cpqq-22v3-2wfmnvdBroken Link
News mentions
1- ⚡ Weekly Recap: Rogue AI Models, $88M Bitcoin Theft, Water-System Attacks and Dangling DNS HijacksThe Hacker News · Aug 3, 2026