TI-2026-68570 Aliases CVE-2026-101158 GHSA-5qwv-x7hg-2f8r

Stored cross-site scripting in Arista CloudVision Portal file upload

MEDIUM 42CWE-79Published 2026-10-06 · Updated 2026-10-06

Key facts

Attack vector: Network
Privileges required: Low
User interaction: Active
Attack complexity: Low
Attack requirements: None
Impact type: Cross-site scripting
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

Arista CloudVision Portal from 1.0.0 before 2025.3.0, from 2025.3.0 through 2025.3.3, from 2026.1.0 through 2026.1.2 and from 2026.2.0 are affected. Missing input validation in the Fileserver upload API allows stored cross-site scripting (CWE-79). An authenticated attacker with file upload privileges can hijack another CloudVision user's web session, potentially gaining full account access and administrative permissions.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00283 20th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Arista	CloudVision Portal	2026.2.0; 2026.1.0 – 2026.1.2; 2025.3.0 – 2025.3.3; 1.0.0 to before 2025.3.0	—	No fix listed	CNA

CloudVision Portal VendorArista Affected 2026.2.0; 2026.1.0 – 2026.1.2; 2025.3.0 – 2025.3.3; 1.0.0 to before 2025.3.0 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for CloudVision Portal.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Timeline

2026-10-06 Threatist record created from CVE-2026-101158
2026-10-07 CISA SSVC decision points changed
2026-10-07 Priority changed: MEDIUM → LOW
2026-10-07 Alias added: GHSA-5qwv-x7hg-2f8r
2026-10-07 Priority changed: LOW → MEDIUM

References

Advisory 1

https://www.arista.com/en/support/advisories-notices/security-advisory/24801-security-advisory-0185

TI-2026-79524 Privilege escalation in Arista VeloCloud Orchestrator on-premises KEVCVSS 4.0CRITICAL 9.4
TI-2026-63212 Improper input validation in Arista VeloCloud Orchestrator On-Prem KEVCVSS 4.0CRITICAL 9.5
TI-2026-13992 VeloCloud Orchestrator OS Command Injection KEVCVSS 4.0CRITICAL 10.0
TI-2014-05975 GNU Bash through 4.3 bash43-025 processes trailing strings after certain malformed… KEVCVSS 3.1CRITICAL 9.8
TI-2014-05157 GNU Bash through 4.3 processes trailing strings after function definitions in the values… KEVCVSS 3.1CRITICAL 9.8
TI-2026-23989 crypto: algif_aead - Revert to operating out-of-place KEVCVSS 3.1HIGH 7.8

See all 216 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences