CVE-2026-56234
MEDIUMCapgo - Password Spraying via Public-Key Accessible Credential Validation Endpoint
Title source: cnaDescription
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.
References (2)
Core 2
Core References
Vendor Advisory vendor-advisory
GitHub Security Advisory (GHSA-f6v3-xv4g-79h5)
https://github.com/Cap-go/capgo/security/advisories/GHSA-f6v3-xv4g-79h5
Third Party Advisory third-party-advisory
VulnCheck Advisory: Capgo - Password Spraying via Public-Key Accessible Credential Validation Endpoint
https://www.vulncheck.com/advisories/capgo-password-spraying-via-public-key-accessible-credential-validation-endpoint
Scores
CVSS v3
5.3
EPSS
0.0025
EPSS Percentile
16.1%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-307
Status
published
Products (2)
Capgo/Capgo
< 12.128.2
Capgo/Capgo
12.128.2
Published
Jun 23, 2026
Tracked Since
Jun 23, 2026