CVE-2026-14890CWE-502insecure-deserialization

CVE-2026-14890

Critical · published July 16, 2026

CVSS v3.1
9.1
EPSS
1%
Percentile
62.4
In the wild
Unconfirmed
What it is

SGLang uses an expert-parallel backup subsystem that exposes a ZeroMQ PULL socket on a routable network interface that does not contain authentication or deserialization safeguards, allowing an attacker to provide a malicious pickle file that results in unauthenticated remote code execution when the feature is enabled and the service is reachable over the network.

The record
Technical detail
CVSS v3.1
9.1 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00998 · 62.4th percentile
Weakness
CWE-502 · Deserialization of Untrusted Data
Published
2026-07-16T20:19Z
Affected products (1)
ProductVersionsFixed in
lmsys/sglang≤ 0.5.14—
References (3)
http://vince.cert.org/vuls/id/326070 · [email protected]https://github.com/sgl-project/sglang/blob/main/python/sglang/srt/elastic_ep/expert_backup_manager.py · [email protected]https://www.kb.cert.org/vuls/id/326070 · af854a3a-2127-422b-91ae-364da2661108
EPSS history
Timeline
  • 16 JUL 14:43Z
    CVE-2026-14890
    cvelistv5