CVE-2026-14890 Details
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.
A vulnerability in SGLang's expert-parallel backup subsystem allows for unauthenticated remote code execution. This issue arises because the subsystem exposes a ZeroMQ PULL socket on a routable network interface without authentication or proper deserialization safeguards. An attacker can exploit this by sending a malicious pickle file, leading to remote code execution when the feature is enabled and the service is accessible over the network.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Jul 16, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://www.kb.cert.org/vuls/id/326070 | CVE | MitigationThird Party Advisory |
| https://github.com/sgl-project/sglang/blob/main/python/sglang/srt/elastic_ep/expert_backup_manager.py | [email protected] | Product |
| http://vince.cert.org/vuls/id/326070 | [email protected] | Permissions Required |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-502 | Deserialization of Untrusted Data | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| lmsys sglang | <= 0.5.14 |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Aug 10, 2026 | Initial Analysis | [email protected] |
| Jul 16, 2026 | CVE Modified | CISA-ADP |
| Jul 16, 2026 | CVE Modified | CVE |
| Jul 16, 2026 | New CVE Received | [email protected] |