CVE-2026-56322
HIGHCapgo - Information Disclosure via Unauthenticated /updates defaultChannel Parameter
Title source: cnaDescription
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.
References (2)
Core 2
Core References
Vendor Advisory vendor-advisory
GitHub Security Advisory (GHSA-pgmr-gw53-7f77)
https://github.com/Cap-go/capgo/security/advisories/GHSA-pgmr-gw53-7f77
Third Party Advisory third-party-advisory
VulnCheck Advisory: Capgo - Information Disclosure via Unauthenticated /updates defaultChannel Parameter
https://www.vulncheck.com/advisories/capgo-information-disclosure-via-unauthenticated-updates-defaultchannel-parameter
Scores
CVSS v3
7.5
EPSS
0.0033
EPSS Percentile
26.0%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-200
Status
published
Products (2)
Capgo/Capgo
< 12.128.2
Capgo/Capgo
12.128.2
Published
Jun 23, 2026
Tracked Since
Jun 23, 2026