What is CVE-2026-94570?

CVE-2026-94570 is a medium-severity vulnerability in Sglang, classified under CWE-1287. CVSS score: 5.9/10. Published 2026-09-22.

How severe is CVE-2026-94570?

Medium severity. CVSS v3 base score is 5.9 out of 10.

Vulnerability in Sglang

CVE-2026-94570

SGLang contains a DoS vulnerability caused by missing input validation for AUX_DATA ZeroMQ control messages in the Decode worker, which enables an unauthenticated remote attacker with network reachability to the Decode control PULL socket to terminate the Decode control thread and cause a denial of service against the target server.

Published 2026-09-22 · last modified 2026-09-22.

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Sglang

Weakness classification (CWE)

CWE-1287

References

gist.github.com/yyymk/b5892625cb5efa2bffd36e0b05334ae8

Frequently asked questions

What is CVE-2026-94570?: CVE-2026-94570 is a medium-severity vulnerability in Sglang, classified under CWE-1287. CVSS score: 5.9/10. Published 2026-09-22.
How severe is CVE-2026-94570?: Medium severity. CVSS v3 base score is 5.9 out of 10.