All vulnerabilities
CVE-2026-101158

CloudVision Portal: Security Advisory 0185

Arista Networks CloudVision Portal
Open in ThreatlineRecord JSON
CVSS
8.4High
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.28%Chance of exploitation activity in the next 30 days, higher than 19% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in2025.3.0Fixed versionCVE List
Published6 Oct 2026Updated 6 Oct 2026CVE List

What fixes it

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Description

A missing input validation vulnerability in the Fileserver upload API allows an authenticated attacker with file upload privileges to execute stored cross-site scripting (XSS). Successful exploitation could enable the attacker to hijack another CloudVision user's web session, potentially granting full access to their account and administrative permissions.

Text from CVE List

Affected versions 4

  • CloudVision Portalaffected: 2026.2.0CVE List
  • CloudVision Portalaffected: 2026.1.0 through 2026.1.2CVE List
  • CloudVision Portalaffected: 2025.3.0 through 2025.3.3CVE List
  • CloudVision Portalaffected: 1.0.0 before 2025.3.0CVE List

References 1