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CVE-2026-15976: CVE-2026-15976

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-30 · updated 2026-08-04
• Weakness: CWE-502

Description

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.

Affected products

• SGLang: through 0.5.15

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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