PT-2026-51502 · Cap Go · Cap-Go

Judel777 · Published 2026-06-23 · Updated 2026-06-23 · CVE-2026-56234

NVD

CVSS v3.1

5.3

Medium

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

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.

Exploit

Fix

Improper Restriction of Excessive Authentication Attempts

Weakness Enumeration

CWE-307

Related Identifiers

CVE-2026-56234

Affected Products

Cap-Go

References · 3

• 🔥 https://github.com/Cap-go/capgo/security/advisories/GHSA-f6v3-xv4g-79h5 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-56234 · Security Note
• https://vulncheck.com/advisories/capgo-password-spraying-via-public-key-accessible-credential-validation-endpoint · Note