CVE-2026-14890
CVE-2026-14890
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.
INFO
Published Date :
July 16, 2026, 4:19 p.m.
Last Modified :
Aug. 10, 2026, 2:13 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | CRITICAL | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
Solution
- Disable the expert-parallel backup subsystem if not needed.
- Restrict network access to the ZeroMQ PULL socket.
- Implement authentication for the ZeroMQ PULL socket.
- Remove deserialization of untrusted data.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-14890.
| URL | Resource |
|---|---|
| http://vince.cert.org/vuls/id/326070 | Permissions Required |
| https://github.com/sgl-project/sglang/blob/main/python/sglang/srt/elastic_ep/expert_backup_manager.py | Product |
| https://www.kb.cert.org/vuls/id/326070 | Mitigation Third Party Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-14890 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-14890
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-14890 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-14890 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Aug. 10, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:lmsys:sglang:*:*:*:*:*:*:*:* versions up to (including) 0.5.14 Added Reference Type CERT/CC: http://vince.cert.org/vuls/id/326070 Types: Permissions Required Added Reference Type CERT/CC: https://github.com/sgl-project/sglang/blob/main/python/sglang/srt/elastic_ep/expert_backup_manager.py Types: Product Added Reference Type CVE: https://www.kb.cert.org/vuls/id/326070 Types: Mitigation, Third Party Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jul. 16, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N Added CWE CWE-502 Added SSVC {'id': 'CVE-2026-14890', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'yes'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-07-16T18:22:59.438982Z'} -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Jul. 16, 2026
Action Type Old Value New Value Added Reference https://www.kb.cert.org/vuls/id/326070 -
New CVE Received by [email protected]
Jul. 16, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'SGLang', 'product': 'SGLang', 'versions': [{'status': 'affected', 'version': '0', 'versionType': 'custom', 'lessThanOrEqual': '0.5.14'}]}] Added 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. Added Reference http://vince.cert.org/vuls/id/326070 Added Reference https://github.com/sgl-project/sglang/blob/main/python/sglang/srt/elastic_ep/expert_backup_manager.py