CVE-2026-56328Network attack vector

Release-routing manipulation via ambiguous public channels

Published Jun 30, 2026 · Updated Jun 30, 2026

Improper release routing in Capgo before 12.128.2 allows remote authenticated users to influence bundles delivered by update checks. The channel-selection logic permits multiple public channels for one app and platform, then resolves an unnamed /updates request without defaultChannel to one implicit winner. App or channel management access is required, and the resulting ambiguity compromises update-routing integrity without a reported confidentiality or availability impact.

CVSS severity7.1
High
EPSS probability0.35%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper release routing in Capgo before 12.128.2 allows remote authenticated users to influence bundles delivered by update checks. The channel-selection logic permits multiple public channels for one app and platform, then resolves an unnamed /updates request without defaultChannel to one implicit winner. App or channel management access is required, and the resulting ambiguity compromises update-routing integrity without a reported confidentiality or availability impact.

The record

CVE
CVE-2026-56328
Published
Jun 30, 2026
Updated
Jun 30, 2026
Vendor
Capgo
Product
Capgo
Classifications
CWE-670, T1195.002
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 30, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 30, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <12.128.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Capgo · Capgoversion=0 <12.128.2

Published CVSS scores

6.5VulnCheckCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
7.1VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-670Always-Incorrect Control Flow Implementation
T1195.002Compromise Software Supply Chain

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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