CVE-2026-56305: Capgo - Authentication Bypass in Password Change via Missing Current Password Validation

Severity: high (CVSS 8.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-07-10 · updated 2026-10-25
Weakness: CWE-620

Description

Capgo before 12.128.2 contains an authentication bypass vulnerability in the password change endpoint that allows attackers to change user passwords without requiring current password confirmation. Attackers with temporary session access can exploit this flaw to permanently lock out legitimate users and achieve full account takeover.

Affected products

Capgo: before 12.128.2 — fixed in 12.128.2

How to fix

Upgrade to a fixed version: Capgo 12.128.2. Check the vendor advisory for mitigations.

References

https://github.com/Cap-go/capgo/security/advisories/GHSA-rjr5-qxqj-cx8g
https://www.vulncheck.com/advisories/capgo-authentication-bypass-in-password-change-via-missing-current-password-validation
https://github.com/Cap-go/capgo/security/advisories/GHSA-rjr5-qxqj-cx8g

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