Vulnerability Description
Capgo before 12.128.12 allows authenticated users to modify their mutable public.users.email to arbitrary addresses, which the SSO provisioning endpoint trusts as an account-merge key. Attackers can pre-position their account with a victim's corporate SSO email, causing the provision-user endpoint to merge the victim's SSO identity into the attacker-controlled account.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/Cap-go/capgo/security/advisories/GHSA-wqc6-fhwf-qpww
- https://www.vulncheck.com/advisories/capgo-account-merge-via-poisoned-public-use
- https://github.com/Cap-go/capgo/security/advisories/GHSA-wqc6-fhwf-qpww
FAQ
What is CVE-2026-56215?
CVE-2026-56215 is a vulnerability with a CVSS score of 8.3 (HIGH). Capgo before 12.128.12 allows authenticated users to modify their mutable public.users.email to arbitrary addresses, which the SSO provisioning endpoint trusts as an account-merge key. Attackers can p...
How severe is CVE-2026-56215?
CVE-2026-56215 has been rated HIGH with a CVSS base score of 8.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-56215?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.