CVE-2026-7301CWE-502insecure-deserialization

CVE-2026-7301

Critical · published May 18, 2026

CVSS v3.1
9.8
EPSS
1%
Percentile
47.9
In the wild
Unconfirmed
What it is

SGLangs multimodal generation runtime scheduler's ROUTER socket binds to 0.0.0.0 by default and contains a sink that calls pickle.loads() on incoming messages, enabling RCE when exposed to the internet.

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00597 · 47.9th percentile
Weakness
CWE-502 · Deserialization of Untrusted Data
Published
2026-05-18T16:16Z
Affected products (1)
ProductVersionsFixed in
lmsys/sglangall versions—
References (2)
https://antiproof.ai/blog/three-rces-in-sglang/ · [email protected]https://github.com/sgl-project/sglang/tree/main/python/sglang · [email protected]
EPSS history
Timeline
  • 18 MAY 10:38Z
    CVE-2026-7301
    cvelistv5