# CVE-2026-56330 — Capgo

> As of 2026-06-20, CVE-2026-56330 is a LOW-severity vulnerability in Capgo, CVSS v3.1 3.5. No Threadlinqs-tracked threat campaign has been attributed to CVE-2026-56330 as of 2026-06-20; the identifier is re-checked against the Threadlinqs threat corpus on every daily ingest.

**Last updated:** 2026-06-20

## What is CVE-2026-56330?

Capgo before 12.128.2 contains an open redirect vulnerability in stripe_portal and stripe_checkout endpoints that accept unvalidated callbackUrl, successUrl, and cancelUrl parameters. Authenticated attackers can craft malicious billing URLs to redirect users to attacker-controlled domains for phishing and credential harvesting.

The record classifies CVE-2026-56330 under weakness class [CWE-601](https://intel.threadlinqs.com/cwe/CWE-601). Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs low-privilege credentials, needs a user to take an action first. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 107 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 3.5 — LOW (`CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N`)
- **CVSS v4.0 base score:** 4.8 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N`)
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 1.8/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-06-20

## Is CVE-2026-56330 being exploited?

It currently carries a trending score of 30 in the Threadlinqs vulnerability feed.

## Affected products and versions

- [Capgo](https://intel.threadlinqs.com/vendors/capgo): Capgo

## How to fix CVE-2026-56330

No vendor patch reference has been recorded for CVE-2026-56330 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

## Threat activity tracking CVE-2026-56330

No threat campaign in the Threadlinqs corpus currently references CVE-2026-56330, in its CVE list or as an indicator. The linkage is recomputed from the live corpus on every daily ingest, so this section fills in as soon as a tracked campaign cites the identifier.

## Sources

Enriched from CVE.org, NVD, GitHub Security Advisories. Last verified by Threadlinqs on 2026-06-21. This product uses the NVD API but is not endorsed or certified by the NVD.

**Vendor advisory and patch**

- [github.com — vendor advisory](https://github.com/Cap-go/capgo/security/advisories/GHSA-grc7-98pf-h8hq)

**Third-party advisory**

- [vulncheck.com — third party advisory](https://www.vulncheck.com/advisories/capgo-open-redirect-via-unvalidated-stripe-billing-urls)

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-56330
Full detection coverage and IOCs for threats exploiting CVE-2026-56330 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp