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CVE-2026-56323

7.5 · HIGH

Capgo before 12.128.2 contains an information disclosure vulnerability in the /functions/v1/channel_self endpoint that allows unauthenticated attackers to enumerate non-public channel names and det…

Published Jun 22, 2026CWE-200EPSS 0.64%

Overview

CVE-2026-56323 is a high-severity vulnerability. It was published on June 22, 2026 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Capgo before 12.128.2 contains an information disclosure vulnerability in the /functions/v1/channel_self endpoint that allows unauthenticated attackers to enumerate non-public channel names and determine app existence and subscription status. Remote attackers can send GET requests with arbitrary app_id parameters to disclose internal rollout channels, enumerate valid applications across tenants, and leak billing status without authentication or device binding.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/Cap-go/capgo/security/advisories/GHSA-469v-6vw5-hxpqRefwww.vulncheck.com/advisories/capgo-unauthenticated-channel-enumeration-and-app-oracle-via-get-channel-selfGitHubgithub.com/Cap-go/capgo/security/advisories/GHSA-469v-6vw5-hxpq

How CyberStrike helps

Frequently asked questions

What is CVE-2026-56323?

CVE-2026-56323 is a high-severity vulnerability. It was published on June 22, 2026 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2026-56323?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-56323?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-56323?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-56323 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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