PT-2026-51220 · Cap Go · Cap-Go

Hunt-With-4Bh1 · Published 2026-06-21 · Updated 2026-06-21 · CVE-2026-56239

NVD

CVSS v3.1

7.6

High

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L

Capgo before 12.128.2 contains a potential privilege escalation vulnerability in the public.apply usage overage SECURITY DEFINER function, which performs sensitive billing operations without enforcing internal authorization checks (no validation of auth.uid(), org membership, or check min rights). Because the function runs with the owner's privileges, it bypasses Row Level Security. If EXECUTE permission is available to the authenticated or anon roles (explicitly or via default privileges), an authenticated user could invoke it via Supabase RPC to manipulate billing data for arbitrary organizations, including unauthorized credit depletion and fraudulent overage event insertion.

Fix

Improper Privilege Management

Weakness Enumeration

CWE-269

Related Identifiers

CVE-2026-56239

Affected Products

Cap-Go

References · 3

• https://github.com/Cap-go/capgo/security/advisories/GHSA-qq85-vjrq-m75g · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-56239 · Security Note
• https://vulncheck.com/advisories/capgo-privilege-escalation-via-security-definer-function-apply-usage-overage · Note