CVE-2026-56228

MEDIUM

Capgo - Denial of Service via Improper Password Policy Length Validation

Title source: cna
STIX 2.1

Description

Capgo before 12.128.2 fails to enforce a maximum value on the minimum password length field in its password policy configuration. An authenticated organization administrator can set an extremely large numeric value (e.g., billions of characters) as the minimum password length, making compliance impossible for all organization members. Once the policy is enabled, users (including administrators) are unable to change their passwords or access the organization, resulting in an organization-wide account lockout and application-level denial of service.

References (2)

Core 2
Core References
Vendor Advisory vendor-advisory
GHSA Advisory GHSA-vhjp-62qf-33mx
https://github.com/Cap-go/capgo/security/advisories/GHSA-vhjp-62qf-33mx
Third Party Advisory third-party-advisory
VulnCheck Advisory: Capgo - Denial of Service via Improper Password Policy Length Validation
https://www.vulncheck.com/advisories/capgo-denial-of-service-via-improper-password-policy-length-validation

Scores

CVSS v3 4.9
EPSS 0.0027
EPSS Percentile 19.0%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-20
Status published
Products (2)
Capgo/Capgo < 12.128.2
Capgo/Capgo 12.128.2
Published Jun 20, 2026
Tracked Since Jun 20, 2026