---
title: "CVE-2026-77877: Control Web Panel - Authentication Bypass"
description: "Control Web Panel (CWP) < 1.30 contains a missing authentication vulnerability caused by lack of access token verification in loopback API service, letting attackers invoke root-privileged API routes without authentication."
url: https://panop.io/threat-heartbeat/CVE-2026-77877/
---

# CVE-2026-77877 Control Web Panel - Authentication Bypass

Control Web Panel (CWP) < 1.30 contains a missing authentication vulnerability caused by lack of access token verification in loopback API service, letting attackers invoke root-privileged API routes without authentication.

CVSS base score 8.4 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-77877)

## Details

Type

Authentication Bypass

Impact

Privilege Escalation

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Published

2 November 2026

Updated

3 November 2026

Weakness

[CWE-306](https://cwe.mitre.org/data/definitions/306.html)

## Vendor fix

Update to version 1.30 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-77877](https://nvd.nist.gov/vuln/detail/CVE-2026-77877)
- [https://control-webpanel.com/changelog](https://control-webpanel.com/changelog)
- [https://www.vulncheck.com/advisories/control-web-panel-cwp-unauthenticated-loopback-api-root-access](https://www.vulncheck.com/advisories/control-web-panel-cwp-unauthenticated-loopback-api-root-access)

[← All CVEs](https://panop.io/threat-heartbeat/)

## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

[Book a demo](https://panop.io/demo)