CVE-2026-56237

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.

CVSS v3 9.1 CRITICAL

9.1^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/Cap-go/capgo/security/advisories/GHSA-22w2-mx2h-4fr7
https://www.vulncheck.com/advisories/capgo-unauthenticated-api-key-generation-via-client-side-parameter-manipulation
https://github.com/Cap-go/capgo/security/advisories/GHSA-22w2-mx2h-4fr7

Configurations

No configuration.

History

No history.

Information

Published : 2026-06-24 13:16

Updated : 2026-06-25 14:03

NVD link : CVE-2026-56237

Mitre link : CVE-2026-56237

CVE.ORG link : CVE-2026-56237

JSON object : View

Products Affected

No product.

CWE

CWE-287

Improper Authentication

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