PT-2026-51149 · Cap Go · Cap-Go

Judel777 · Published 2026-06-20 · Updated 2026-06-20 · CVE-2026-56235

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions capgo versions prior to 12.128.2

Description An authorization bypass exists in several Supabase PostgREST RPC functions: get app metrics(), get global metrics(), and get total metrics(). These functions are granted to the anon role without enforcing permission checks or organization membership. An unauthenticated attacker with a public Supabase API key (sb publishable *) can query arbitrary org id values to disclose cross-tenant usage telemetry, including monthly active users (MAU), bandwidth, installs, and gets. Additionally, this allows for the enumeration of app IDs for a target organization and the determination of organization existence via an oracle, where a valid organization returns metrics and an invalid one returns an empty list.

Recommendations Update to version 12.128.2 or later. As a temporary workaround, restrict access to the get app metrics(), get global metrics(), and get total metrics() functions.

Fix

Information Disclosure

Weakness Enumeration

CWE-200

Related Identifiers

CVE-2026-56235

Affected Products

Cap-Go

References · 5

• https://github.com/Cap-go/capgo/security/advisories/GHSA-gfpq-vphf-6gcm · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-56235 · Security Note
• https://twitter.com/CVEnew/status/2068380911624729042 · Twitter Post
• https://vulncheck.com/advisories/capgo-unauthenticated-cross-tenant-metrics-disclosure-via-rpc-functions · Note
• https://twitter.com/infoflowcloud/status/2068382476901224878 · Twitter Post