Deserialization in Lmsys Sglang
CVE-2025-10164
A security flaw has been discovered in lmsys sglang 0.4.6. Affected by this vulnerability is the function main of the file /update_weights_from_tensor. The manipulation of the argument serialized_named_tensors results in deserialization. T…
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
EPSS: 0.001 (29.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.
Affected products
- Lmsys Sglang — versions 0.4.6
Weakness classification (CWE)
Public proof-of-concept exploits
References
- VDB-323203 | lmsys sglang update_weights_from_tensor main deserialization (technical-description, vdb-entry)
- VDB-323203 | CTI Indicators (IOB, IOC, IOA) (signature, permissions-required)
- Submit #635919 | lmsys sglang >=0.4.6 Deserialization (third-party-advisory)
Frequently asked questions
- What is CVE-2025-10164?
- CVE-2025-10164 is a high-severity vulnerability in Lmsys Sglang, classified under Improper Input Validation. CVSS score: 7.3/10. Published 2025-09-09.
- How severe is CVE-2025-10164?
- High severity. CVSS v3 base score is 7.3 out of 10.
- Is CVE-2025-10164 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.