CVE-2026-56249
Capgo - Unauthorized Channel Overwrite and Ownership Takeover via POST /channel Name Collision
CVSS Score
7.6
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-285 |
| Vendor | capgo |
| Product | capgo |
| Published | Jun 30, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
High
Availability
Low
Affected Versions
Capgo / Capgo
0 < 12.128.2
References
Credits
🔍 Judel777