Auth bypass in Capgo
CVE-2026-56246
Capgo before 12.128.2 contains a broken access control vulnerability in the organization management API where a scoped API key (limited_to_orgs) inherits its owner-user's permissions, allowing destructive cross-organization actions. When a user is an admin in two organizations and creates a write-mode API key restricted to one organization, that key can still perform destructive operations (e.g., DELETE /organization, DELETE /organization/members) against another organization. The root cause is route-level authorization (rbac_check_permission_direct) that evaluates the key owner's user privileges before enforcing the API key's limited_to_orgs scope.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H.
EPSS exploit prediction
EPSS: 0.004 (32.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 32nd percentile — 32.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Capgo — versions 0, 12.128.2
Weakness classification (CWE)
References
- github.com/Cap-go/capgo/security/advisories/GHSA-ccm4-hf72-p28m (vendor-advisory)
- www.vulncheck.com/advisories/capgo-cross-organization-authorization-bypass-via-… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-56246?
- CVE-2026-56246 is a high-severity vulnerability in Capgo, classified under Improper Authorization. CVSS score: 8.1/10. Published 2026-07-08.
- How severe is CVE-2026-56246?
- High severity. CVSS v3 base score is 8.1 out of 10.