---
id: CVE-2026-56332
title: >-
  Capgo before 12.128.2 contains an open redirect vulnerability in the
  confirm-signup endpoint that allows attackers to redirect users to arbitrary
  external websites
summary: >-
  Capgo before 12.128.2 contains an open redirect vulnerability in the
  confirm-signup endpoint that allows attackers to redirect users to arbitrary
  external websites. The confirmation_url parameter is not validated, enabling
  attackers to c…
severity: medium
cvss: 4.7
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N'
cwe:
  - CWE-601
vendor: Capgo
product: Capgo
affected:
  - Capgo < 12.128.2
published: '2026-06-20'
updated: '2026-10-08'
sourceUpdated: '2026-10-08T16:17:22.093'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-56332'
references:
  - url: 'https://github.com/Cap-go/capgo/security/advisories/GHSA-24q8-ghqq-m8cj'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/capgo-open-redirect-via-confirmation-url-parameter
    label: disclosure@vulncheck.com
  - url: 'https://github.com/Cap-go/capgo/security/advisories/GHSA-24q8-ghqq-m8cj'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
  - cve.org
  - exploit-available
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-06-22T12:42:57.420302Z'
epss: 0.00299
epssPercentile: 0.20696
ingestedAt: '2026-10-08T16:52:14.691Z'
---

## Overview

Capgo before 12.128.2 contains an open redirect vulnerability in the confirm-signup endpoint that allows attackers to redirect users to arbitrary external websites. The confirmation_url parameter is not validated, enabling attackers to craft malicious links for phishing and credential harvesting attacks.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.