Vulnerability · Published Jun 19, 2026 · Assigned by VulnCheck

CVE-2026-56080Cap-go - Authentication Logic Flaw in Enforce Password Policy

Medium 4.9

In plain English

A medium-severity improper authentication in capgo from Cap-go. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 30% of all known vulnerabilities).

Severity (CVSS 3.1)4.9Medium

Exploit odds (30 days)0.4%top 70.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

Capgo before 12.128.2 contains a flaw in the Enforce Password Policy feature: after a Super Admin enables the policy and successfully changes their password to a compliant one, the backend does not update the password-compliance state. As a result, the backend continues to treat the account as non-compliant and repeatedly forces password-reset prompts, permanently locking the Super Admin out of organization access (organization lockout / denial of service) despite valid authentication.

Affected products (as reported)

Vendor	Product	Versions
Cap-go	capgo	0 – before 12.128.2

Weakness: CWE-287 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

References

GHSA Advisory GHSA-78rv-3cqj-36xq vendor-advisory
VulnCheck Advisory: Cap-go - Authentication Logic Flaw in Enforce Password Policy third-party-advisory