What’s Vulnerable › Vulnerabilities

CVE-2026-56333: Capgo - Server-Side Validation Bypass via Direct Browser-Side Organization Security Settings Updates

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-06-30 · updated 2026-10-25
• Weakness: CWE-20

Description

Capgo before 12.128.2 contains a server-side validation bypass vulnerability in organization security settings that allows authenticated org admins to persist invalid security policy state. Attackers can bypass backend validation by directly updating the public.orgs table from the browser, circumventing field-level validation checks for max_apikey_expiration_days and other security-sensitive configuration parameters.

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-964v-j58v-2q3h
• https://www.vulncheck.com/advisories/capgo-server-side-validation-bypass-via-direct-browser-side-organization-security-settings-updates
• https://github.com/Cap-go/capgo/security/advisories/GHSA-964v-j58v-2q3h

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