CriticalVulnerability

CVE-2026-15976: SGLang remote code execution via pickle load in /update_weights_from_disk

Source: NVD(opens in a new tab)
Identifier: CVE-2026-15976
Published: July 30, 2026
Record updated: October 9, 2026

Known exploitation: Not listed in the CISA Known Exploited Vulnerabilities catalog at the last check.
EPSS: 0.6%

Summary

CVE-2026-15976 affects SGLang and allows remote code execution when it loads model weights from a HuggingFace repository. The flaw sits in the /update_weights_from_disk path, where a torch.load(..., weights_only=False) fallback enables pickle deserialization of .bin files. NVD has not yet provided an assessment.

Mitigation

The source does not state a fix yet. Check the original advisory for updates.

Details

Scores and exploitation

EPSS: 0.6%Estimated probability that this CVE is exploited in the next 30 days, from the FIRST Exploit Prediction Scoring System. Read on November 4, 2026.
Disclosure date: July 30, 2026

Affected

Vendors: HuggingFace

Classification

Attack type: Other
Attack sophistication: Moderate
AI component targeted: Inference
Impact: Confidentiality,
Integrity,
Availability
Labels: security

How this record was produced

Summaries, mitigations and labels on this page are generated automatically from the source. The linked source is authoritative. The source gives this advisory a description and no title, so the title above is a headline generated from the source text.

Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-15976

First tracked: July 31, 2026 at 02:07 AM ET, from NVD/CVE Database

Classifier: claude-haiku-5-5, prompt v4

Classifier confidence: 90% (self-assessed)

Summary

Mitigation

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