๐Ÿ” CVE Alert

CVE-2026-56237

CRITICAL 9.1

Capgo - Unauthenticated API Key Generation via Client-Side Parameter Manipulation

CVSS Score
9.1
EPSS Score
0.0%
EPSS Percentile
0th

Capgo before 12.128.2 contains a broken authentication vulnerability in its API key generation mechanism. API keys are exposed in frontend requests, and the backend fails to validate that keys are securely generated and bound to the authenticated user. An attacker can tamper with the API key parameter in the generation request and supply arbitrary values, generating custom API keys without proper authorization, which can lead to unauthorized access to protected endpoints.

CWE CWE-287
Vendor capgo
Product capgo
Published Jun 24, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

Affected Versions

Capgo / Capgo
0 < 12.128.2

References

NVD โ†— CVE.org โ†— EPSS Data โ†—
github.com: https://github.com/Cap-go/capgo/security/advisories/GHSA-22w2-mx2h-4fr7 vulncheck.com: https://www.vulncheck.com/advisories/capgo-unauthenticated-api-key-generation-via-client-side-parameter-manipulation