CVE-2026-56331
Capgo - Improper Error Handling in Accept Invitation Endpoint via Invalid Magic String
CVSS Score
5.3
EPSS Score
0.0%
EPSS Percentile
0th
Capgo before 12.128.2 contains improper error handling in the /private/accept_invitation endpoint that returns HTTP 500 instead of safe 4xx errors when magic_invite_string is invalid. Attackers can trigger this vulnerability using only the public key by submitting malformed magic_invite_string values to cause server errors and leak internal processing details.
| CWE | CWE-209 |
| Vendor | capgo |
| Product | capgo |
| Published | Jun 30, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None
Affected Versions
Capgo / Capgo
0 < 12.128.2
References
Credits
🔍 Judel777