CVE-2026-56232
Capgo - Subkey Scope Bypass in middlewareKey via x-limited-key-id Header
CVSS Score
8.8
EPSS Score
0.0%
EPSS Percentile
0th
Capgo before 12.128.2 fails to enforce limited_to_orgs and limited_to_apps constraints on subkeys provided via x-limited-key-id header in middlewareKey function. Attackers can bypass subkey scope restrictions by referencing their own subkeys, causing all downstream route handlers to use the unrestricted parent key instead of the scoped subkey.
| CWE | CWE-863 |
| Vendor | capgo |
| Product | capgo |
| Published | Jun 24, 2026 |
| Last Updated | Jun 24, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
Capgo / Capgo
0 < 12.128.2
References
Credits
🔍 Judel777