CVE-2026-56249

HIGH SEVERITY

CVSS Score & Metrics

Base Score

7.6 / 10

Vector String

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

Vulnerability Description

Capgo before 12.128.2 contains an authorization bypass vulnerability in the channel creation endpoint that allows authenticated users to overwrite existing channels by reusing their names. Attackers with app.create_channel permission can exploit a logic mismatch between existence validation and upsert operations to reassign channel ownership and modify critical production channel configurations.

Vulnerability Details

Published Date

June 30, 2026

Last Modified

June 30, 2026

CWE ID

CWE-285

Source

NVD

Vendor

Capgo

Product

Capgo

External References

https://github.com/Cap-go/capgo/security/advisories/GHSA-vj24-j594-3wv3
https://www.vulncheck.com/advisories/capgo-unauthorized-channel-overwrite-and-ownership-takeover-via-post-channel-name-collision

CVE-2026-56249

CVSS Score & Metrics

Vulnerability Description

Vulnerability Details

External References

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