CVE-2026-15978
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Summary
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 Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| SGLang | SGLang | 0 <= v0.5.15 | affected |
Weaknesses
- CWE-306: Missing Authentication for Critical Function
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: poc
- Automatable: yes
- Technical Impact: partial
Additional References
References
- https://github.com/sgl-project/sglang/security/advisories/GHSA-cpqq-22v3-2wfm
- https://thoughts.apoorvdayal.com/posts/sglang-disclosures/
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