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Arista CloudVision Portal open redirect in login flow

Priority LOW 24CWE-601Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Passive
Attack complexity
Low
Attack requirements
None
Impact type
Spoofing
Confidentiality · integrity · availability
Low · None · None
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-601.

Summary

Arista CloudVision Portal has an open redirect in its login flow (CWE-601), rated 5.3 MEDIUM under CVSS 4.0. Insufficient request validation lets a remote, unauthenticated attacker craft a URL that, when a user clicks it, sends the browser to an arbitrary external site after authentication completes. Affected ranges are from 2026.2.0, 2026.1.0 through 2026.1.2, 2025.3.0 through 2025.3.3, and 2020.3.0 before 2025.3.0. CISA has not added it to KEV, and the references contain no exploit link.

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

Description from the CNA

Insufficient validation of request in login flow could allow a remote, unauthenticated attacker to craft a URL that, when clicked by a user, redirects the user's browser to an arbitrary external site upon completion of the authentication process.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00308 23rd 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
Partial

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

Affected products

VendorProductAffected versionsFixed inStatusSource
AristaCloudVision Portal2026.2.0; 2026.1.0 – 2026.1.2; 2025.3.0 – 2025.3.3; 2020.3.0 to before 2025.3.0—No fix listedCNA
  • CloudVision Portal VendorArista Affected 2026.2.0; 2026.1.0 – 2026.1.2; 2025.3.0 – 2025.3.3; 2020.3.0 to before 2025.3.0 Fixed in — No fix listed CNA

Remediation

No fixed version is listed for any affected range. Check the Arista advisory for updates and apply the fix once it is released.

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

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Advisory ·

    Arista Networks CloudVision Portal — arista.com/en/support/advisories-notices/security-advisory/…

    2 records Highest priority Priority LOW 2 LOW

    Other records, highest priority first

    • TI-2026-68568 Open redirect in Arista CloudVision SSO leaks authentication dataPriority LOW 35

Timeline

  1. 2026-10-06 Threatist record created from CVE-2026-101151
  2. 2026-10-07 CISA SSVC decision points changed
  3. 2026-10-07 Alias added: GHSA-9mxj-h322-6q9p

References

  • 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