CVE-2026-56328

MEDIUM 6.5

Capgo - Integrity Issue in Release Routing via Multiple Public Channels

CVSS Score

6.5

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-670
Vendor	capgo
Product	capgo
Published	Jun 30, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Affected Versions

Capgo / Capgo

0 < 12.128.2

References

NVD ↗ CVE.org ↗ EPSS Data ↗

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

Credits

🔍 Judel777