# CVE-2026-56228 — Capgo

> As of 2026-06-20, CVE-2026-56228 is a MEDIUM-severity vulnerability in Capgo, CVSS v3.1 4.9. No Threadlinqs-tracked threat campaign has been attributed to CVE-2026-56228 as of 2026-06-20; the identifier is re-checked against the Threadlinqs threat corpus on every daily ingest.

**Last updated:** 2026-06-20

## What is CVE-2026-56228?

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.

The record classifies CVE-2026-56228 under weakness class [CWE-20](https://intel.threadlinqs.com/cwe/CWE-20). Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs high-privilege credentials, needs no user interaction, and has high impact on availability. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 107 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 4.9 — MEDIUM (`CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H`)
- **CVSS v4.0 base score:** 6.9 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N`)
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 2.5/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-06-20

## Is CVE-2026-56228 being exploited?

It currently carries a trending score of 30 in the Threadlinqs vulnerability feed.

## Affected products and versions

- [Capgo](https://intel.threadlinqs.com/vendors/capgo): Capgo

## How to fix CVE-2026-56228

No vendor patch reference has been recorded for CVE-2026-56228 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

## Threat activity tracking CVE-2026-56228

No threat campaign in the Threadlinqs corpus currently references CVE-2026-56228, in its CVE list or as an indicator. The linkage is recomputed from the live corpus on every daily ingest, so this section fills in as soon as a tracked campaign cites the identifier.

## Sources

Enriched from CVE.org. Last verified by Threadlinqs on 2026-06-21.

**Vendor advisory and patch**

- [github.com — vendor advisory](https://github.com/Cap-go/capgo/security/advisories/GHSA-vhjp-62qf-33mx)

**Third-party advisory**

- [vulncheck.com — third party advisory](https://www.vulncheck.com/advisories/capgo-denial-of-service-via-improper-password-policy-length-validation)

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-56228
Full detection coverage and IOCs for threats exploiting CVE-2026-56228 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp