CVE-2026-7301

published 2026-05-18 5 mo ago modified 2026-10-14 25 d ago also GHSA-gwv6-pq6m-p3rq , PYSEC-2026-536 , EUVD-2026-30765

cvss: 9.8; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.4%; EPSS 0.4% chance of exploitation in 30 days, percentile 34%
public exploits: 0; none known

SGLangs multimodal generation runtime scheduler's ROUTER socket binds to 0.0.0.0 by default and contains a sink that calls pickle.loads() on incoming messages, enabling RCE when exposed to the internet.

CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: total
Assessed: 5 mo ago (2026-05-18)

Exploit prediction

0.40% chance of exploitation in the next 30 days, higher than 34% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CISA ADP	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
OSV	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
GitHub	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem	package	affected	fixed in
pypi	sglang	>=0.5.5, <=0.5.12	no fix listed

Affected products

SGLang SGLang

Classification

Weakness

CWE-502 Deserialization of Untrusted Data

References

github.com /sgl-project/sglang/tree/main/python/sglang
web, product
antiproof.ai /blog/three-rces-in-sglang/
permissions-required
nvd.nist.gov /vuln/detail/CVE-2026-7301
advisory
antiproof.ai /blog/three-rces-in-sglang
web
github.com /sgl-project/sglang
package
pypi.org /project/sglang
package
github.com /advisories/GHSA-gwv6-pq6m-p3rq
advisory

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary