CVE-2026-56234

Capgo before 12.128.2 contains a credential validation vulnerability in the POST /functions/v1/private/validate_password_compliance endpoint that is callable using only the public Supabase key without authentication. The endpoint is CORS-permissive with wildcard origin allowance and lacks rate limiting, enabling attackers to perform password spraying and credential stuffing attacks to compromise user accounts.

CVSS v3 5.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/Cap-go/capgo/security/advisories/GHSA-f6v3-xv4g-79h5
https://www.vulncheck.com/advisories/capgo-password-spraying-via-public-key-accessible-credential-validation-endpoint
https://github.com/Cap-go/capgo/security/advisories/GHSA-f6v3-xv4g-79h5

Configurations

No configuration.

History

23 Jun 2026, 15:16

Type	Values Removed	Values Added
References	~~() https://github.com/Cap-go/capgo/security/advisories/GHSA-f6v3-xv4g-79h5 -~~	() https://github.com/Cap-go/capgo/security/advisories/GHSA-f6v3-xv4g-79h5 -

23 Jun 2026, 13:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-23 13:16

Updated : 2026-06-23 15:16

NVD link : CVE-2026-56234

Mitre link : CVE-2026-56234

CVE.ORG link : CVE-2026-56234

JSON object : View

Products Affected

No product.

CWE

CWE-307

Improper Restriction of Excessive Authentication Attempts

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