# CVE-2026-56328

## Summary

- **CVE ID:** CVE-2026-56328
- **Severity:** HIGH
- **CVSS Score:** 7.1 (CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N)
- **CWE:** CWE-670
- **Published:** Jun 30, 2026
- **Last Modified:** Jul 1, 2026

## Description

Capgo before 12.128.2 allows multiple public channels for the same app and platform to coexist simultaneously, while unnamed /updates requests without defaultChannel implicitly resolve to a single hidden winner channel. An authorized app or channel manager can create ambiguous default update state and silently influence which bundle unnamed clients receive, breaking release routing integrity and predictability.

## Affected Products

- Capgo — Capgo (0)
- Capgo — Capgo (12.128.2)

## References

- [CNA](https://github.com/Cap-go/capgo/security/advisories/GHSA-3cmp-pm5x-8464)
- [CNA](https://www.vulncheck.com/advisories/capgo-integrity-issue-in-release-routing-via-multiple-public-channels)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.35%
- **EPSS Percentile:** 28.0

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._