CVE-2026-14890 | SGLang uses an expert-parallel backup subsystem that exposes… | CVSS 9.1 CRITICAL

Description

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.

Metadata

CVE ID: CVE-2026-14890
State: PUBLISHED
Assigner: certcc
Reserved: 2026-07-06 17:51 UTC
Published: 2026-07-16 14:43 UTC
Last updated: 2026-07-16 18:23 UTC
Primary CWE: CWE-502
CWE-502 Deserialization of Untrusted Data
Vendor / Product: SGLang / SGLang
Sources: cve.org · NVD

Severity & Metrics

9.1 CRITICAL CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

SSVC — CISA Coordinator

Exploitation: none
Automatable: yes
Tech. Impact: total

Affected products (1)

Vendor	Product	Platform	Versions
SGLang	SGLang	—	0 ≤ 0.5.14

Weakness (CWE)

CWE	Source	Description
—	cna	CWE-502 (Deserialization of Untrusted Data)
CWE-502	adp	CWE-502 Deserialization of Untrusted Data

CVSS scores (1)

Score	Severity	Version	Source	Vector
9.1	CRITICAL	3.1	adp	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

References (2)