CVE-2026-100629 (GCVE-0-2026-100629)

Vulnerability from cvelistv5 – Published: 2026-09-26 13:23 – Updated: 2026-10-05 16:08
VLAI
Title
Capgo backend before 12.127.5 Privilege Escalation via role_bindings PATCH
Summary
Capgo (capgo.app backend) before 12.127.5 contains an authorization flaw in the PATCH /private/role_bindings/:binding_id endpoint. The handler verifies that the newly assigned role's priority rank does not exceed the caller's own rank, but — unlike the DELETE handler — it never checks the rank of the role currently bound to the target binding. An authenticated user holding the org_admin role (rank 90) can therefore change an org_super_admin binding (rank 95) to a lower-privileged role such as org_member (rank 75). Because the prevent_last_super_admin_binding_delete database trigger fires only BEFORE DELETE and not on UPDATE, an org_admin can demote every org_super_admin, leaving the organization with no super administrator. The issue is fixed in 12.127.5.
Severity
7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N
5.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:L
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-05 16:07 UTC
CWE
  • CWE-863 - Incorrect Authorization
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6925 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Cap-go capgo.app Affected: 0 , < 12.127.5 (semver)
Unaffected: 12.127.5 (semver)
guessed Create a notification for this product.
Date Public
2026-09-10 00:00
Credits
offset
Show details on NVD website
To clipboard 

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