# CVE-2026-101151: Arista CloudVision Portal open redirect in login flow

Source: https://junglewise.ai/threats/cve-2026-101151-insufficient-validation-of-request-in-login-flow-could-allow-a  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-06. Updated: 2026-10-06  
License: CC BY 4.0 with a link back

CVE-2026-101151 · Severity: medium · CVSS 4.3 · Published 2026-10-06

Arista CloudVision Portal is a network management and automation platform used by enterprises to configure and monitor network infrastructure. An unauthenticated attacker can craft a malicious URL that, when clicked by a user, redirects them to an attacker-controlled website after they complete authentication, potentially enabling phishing attacks or credential theft. The vulnerability affects default configurations and does not require special setup to exploit.

Technologies: [Arista Cloudvision Portal](https://junglewise.ai/threats/technologies/cloudvision-portal). Vendors: [Arista](https://junglewise.ai/threats/vendors/arista).

## Quick answers

**Is CVE-2026-101151 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-101151 being exploited in the wild.

**How severe is CVE-2026-101151?** Medium severity, with a CVSS score of 4.3, published 6 October 2026.

**Which products and versions are affected?** Arista Cloudvision Portal 2026.2.0, 2026.1.2 and below, 2025.3.3 and below, and all prior releases back to 2020.3.0.

**Is there a fix for CVE-2026-101151?** Yes: fixed in 2026.2.1, 2026.1.3, 2025.3.4 and later releases in each respective train. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-101151 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-101151?** Check whether you run Arista Cloudvision Portal at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- Fixed in 2026.2.1, 2026.1.3, 2025.3.4 and later releases in each respective train

## Technical details

CVE-2026-101151 is an open redirect (CWE-601) in the login flow caused by insufficient validation of redirect URLs. An unauthenticated remote attacker can craft a URL that causes the user's browser to be redirected to an arbitrary external site upon successful authentication, via a user-initiated click. The vulnerability requires user interaction but no authentication or special configuration; a fix is available in recent patch releases.

## Affected products

- Arista CloudVision Portal 2026.2.0, 2026.1.2 and below, 2025.3.3 and below, and all prior releases back to 2020.3.0

## Timeline

- 2026-10-06: disclosed

## References

- [https://www.arista.com/en/support/advisories-notices/security-advisory/24803-security-advisory-0187](https://www.arista.com/en/support/advisories-notices/security-advisory/24803-security-advisory-0187)

## Related threats

- [Arista CloudVision CUE authentication bypass via IP spoofing](https://junglewise.ai/threats/cve-2026-102161-an-unauthenticated-attacker-located-on-an-adjacent-private)
- [Arista CloudVision CUE OS command injection in backup management](https://junglewise.ai/threats/cve-2026-102160-an-operating-system-os-command-injection-vulnerability-in)
- [Arista CloudVision-CUE access control bypass in backend](https://junglewise.ai/threats/cve-2026-102159-an-access-control-flaw-in-the-cv-cue-backend-may-allow-an)
- [Arista CloudVision CUE SQL injection in API parameter validation](https://junglewise.ai/threats/cve-2026-102158-improper-validation-of-selected-cloudvision-cue-application)
- [Arista CloudVision CUE IDOR in file-serving interface](https://junglewise.ai/threats/cve-2026-102157-an-insecure-direct-object-reference-idor-vulnerability-in-a)