CVE-2026-56239

What it is

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.

At a glance

Exploitability

Can be exploited over the network with a low-privilege account. High risk of data tampering.

Exploit odds

0.3% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2026-06-21 14:16 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-24 17:17 UTC Last updatedMost recent change to the record

Details

Published

2026-06-21 14:16 UTC

Last modified

2026-06-24 17:17 UTC

Exploit probability

0.3% · EPSS, next 30 days

Weakness

CWE-269 · Improper privilege management

Record status

Deferred

Attack profile CVSS 4.0 · 7.2

Attack vector

Network

Complexity

Low

Attack requirements

None

Privileges needed

Low

User interaction

None

Confidentiality

Low

Integrity

High

Availability

Low