CVE-2026-56322

High

Description

Capgo before 12.128.2 contains an information disclosure vulnerability in the unauthenticated /updates endpoint that resolves the defaultChannel parameter before enforcing privacy restrictions, allowing attackers to enumerate private channels and leak version/config state. Unauthenticated attackers can probe private channel names and distinguish valid channels from nonexistent ones based on response differences, revealing assigned bundle versions and platform-specific configuration details.

SeverityHigh

CVSS7.5

Exploit probability—

ProductCapgo

PublishedJun 23, 2026

First seenJun 23, 2026

Weakness typeCWE-200Sensitive information exposure

How to fix

Update

Capgo Capgo12.128.2 or later

Vendor advisories

github.com/Cap-go/capgo/security/advisories/GHSA-pgmr-gw53-7f77

Affected products

Product	Affected versions	Fixed in
Capgo Capgo	v < 12.128.2	12.128.2

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