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CVE-2026-56332

Capgo - Open Redirect via confirmation_url Parameter

MEDIUM
4.7
CVSS Score
Published: June 20, 2026 at 03:24 PM UTC
Updated: October 8, 2026 at 04:17 PM UTC
1 product affected across 1 vendorCapgo

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Severity
MEDIUM4.7
Exploit prediction
EPSS 0.2%
SSVC
PoC

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Capgo· Capgonpm
90%
0 ≤ v < 12.128.20
Vendor states this is fixed in 12.128.2 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

Vendor Advisory
Source: cverecord
https://github.com/Cap-go/capgo/security/advisories/GHSA-24q8-ghqq-m8cj
Third Party Advisory
Source: cverecord
https://www.vulncheck.com/advisories/capgo-open-redirect-via-confirmation-url-parameter

SSVC — Action Prioritization

SSVCPoCAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.7MEDIUMVulnCheck
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
NONE
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-601

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