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TI-2026-40697 Aliases CVE-2026-56332GHSA-8pv8-j6gq-48m4

Capgo - Open Redirect via confirmation_url Parameter

Priority MEDIUM 62CWE-601Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Active
Attack complexity
Low
Attack requirements
None
Impact type
Spoofing
Confidentiality · integrity · availability
None · Low · None
Fix status
Fixed

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

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 craft malicious links for phishing and credential harvesting attacks.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00217 12th percentileScored 2026-11-07
Fix Fixed Capgo (Capgo): 12.128.2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
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
CapgoCapgobefore 12.128.212.128.2Patch availableCNA
  • Capgo VendorCapgo Affected before 12.128.2 Fixed in 12.128.2 Patch available CNA

Remediation

  • Fix · CNA Capgo (Capgo) Fixed in 12.128.2

Fixed in the same release

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

  • Release ·

    Capgo 12.128.2

    13 records Highest priority Priority HIGH 5 HIGH, 7 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2026-40579 Capgo - Unauthenticated Organization Enumeration and Billing Status Disclosure via Supabase RPCPriority HIGH 77
    • TI-2026-40581 Capgo - Scope Escalation via API Key Creation in /functions/v1/apikeyPriority HIGH 73
    • TI-2026-40647 Capgo - Information Disclosure via Unauthenticated /replication EndpointPriority HIGH 70
    Show all 13 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-56332
  2. 2026-10-03 Alias added: GHSA-8pv8-j6gq-48m4

References

Advisory 1

  • TI-2026-40602 Capgo - Unauthenticated API Key Generation via Client-Side Parameter Manipulation CVSS 4.0CRITICAL 9.3
  • TI-2026-40473 Cap-go - Account Lockout via 2FA Misconfiguration on Unverified Email CVSS 4.0CRITICAL 9.3
  • TI-2026-40465 Cap-go - OTP Bypass via Response Manipulation in Email Verification CVSS 4.0CRITICAL 9.3
  • TI-2026-64782 capgo.app through 12.129.0 Cache Restoration of Deleted Bundles CVSS 4.0HIGH 8.7
  • TI-2026-40704 Capgo - Unauthenticated Organization Existence Enumeration via rescind_invitation RPC CVSS 4.0HIGH 8.7
  • TI-2026-40689 Capgo - Rate Limit Bypass via User-Controlled device_id Parameter CVSS 4.0HIGH 8.8
See all 124 →

Sources

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