CVE-2026-15976

9.8 criticalEPSS 0.6%

Critical (9.8) in lmsys sglang. EPSS 0.6% chance of exploitation in the next 30 days.

SGLang contains a RCE vulnerability when attempting to load model weights from a HuggingFace repository, specifically within the /update_weights_from_disk, where torch.load(..., weights_only=False) fallback enables pickle deserialization of .bin files.

Severity

CVSS 3.1

9.8 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.6% chance of exploitation in the next 30 days; higher than 48% of CVEs (scores of 2026-10-31)
CWE: CWE-502
Published: 2026-07-30
Modified: 2026-08-04
Record from: the NVD, synced 2026-10-19

Affected

lmsys:sglang

References

https://github.com/sgl-project/sglang/security/advisories/GHSA-wf98-gv64-5wrf
https://thoughts.apoorvdayal.com/posts/sglang-disclosures/
https://thoughts.apoorvdayal.com/posts/sglang-disclosures/

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