Yuxi sandbox isolation failure allows cross-tenant access and internal service compromise

published 2026-11-04 4 d ago modified 2026-11-04 4 d ago also EUVD-2026-117122

cvss: 9.9; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.8%; EPSS 0.8% chance of exploitation in 30 days, percentile 56%
public exploits: 0; none known

Yuxi is a large-model-based intelligent knowledge base and knowledge graph agent development platform. From 0.6.0.beta1 until 0.7.1, there is insufficient isolation between execution-capable Docker sandboxes and trusted application services. A low-privileged authenticated user who can execute commands in their own sandbox can reach other tenants' sandbox APIs, access their files and secrets, execute commands in active sandboxes, and enumerate, create, or delete sandboxes through the unauthenticated provisioner without knowing administrator, database, or MinIO credentials. Sandboxes can also reach shared internal services; if shipped default service credentials remain unchanged, an attacker can use them, and if the exposed PostgreSQL account is a superuser, obtain command execution in the PostgreSQL container. These paths can disclose or modify cross-tenant data and sandbox state or cause denial of service through sandbox deletion without a container escape or kernel vulnerability. This vulnerability is fixed in 0.7.1. Existing deployments must separately rotate persisted PostgreSQL, Neo4j, or MinIO credentials that were previously set to documented or shipped defaults because upgrading the Compose files does not automatically rotate them.

Patch / fix

links 1

github.com/xerrors/Yuxi@b5b5713 commit

Exploit prediction

0.80% chance of exploitation in the next 30 days, higher than 56% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	9.9	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Affected products

xerrors Yuxi

Classification

Weakness

CWE-77 Improper Neutralization of Special Elements used in a Command
CWE-284 Improper Access Control
CWE-522 Insufficiently Protected Credentials

References

Sources

CVE List CVE-2026-97693
NVD CVE-2026-97693

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