CVE-2026-56257 | Capgo before 12.128.2 allows direct patching of public.apps.… | CVSS 7.1 HIGH

Description

Capgo before 12.128.2 allows direct patching of public.apps.owner_org through PostgREST, bypassing the transfer_app() workflow and creating split-brain ownership. Attackers can directly update apps.owner_org while leaving app_versions.owner_org unchanged, enabling old-org keys to retain access to version data while new-org keys control the app record.

Metadata

CVE ID: CVE-2026-56257
State: PUBLISHED
Assigner: VulnCheck
Reserved: 2026-06-19 21:56 UTC
Published: 2026-06-24 11:53 UTC
Last updated: 2026-06-24 11:53 UTC
Primary CWE: CWE-284
Improper Access Control
Vendor / Product: Capgo / Capgo
Sources: cve.org · NVD

Severity & Metrics

7.1 HIGH CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N

Affected products (1)

Vendor	Product	Platform	Versions
Capgo	Capgo	—	0 < 12.128.2, 12.128.2

Weakness (CWE)

CWE	Source	Description
CWE-284	cna	Improper Access Control

CVSS scores (2)

Score	Severity	Version	Source	Vector
7.1	HIGH	4.0	cna	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N
7.1	HIGH	3.1	cna	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N

References (2)

GitHub Security Advisory (GHSA-v9jp-r5wh-qqcp) https://github.com/Cap-go/capgo/security/advisories/GHSA-v9jp-r5wh-qqcp
VulnCheck Advisory: Capgo - Authorization Bypass in App Ownership Transfer via Direct PostgREST Update https://www.vulncheck.com/advisories/capgo-authorization-bypass-in-app-ownership-transfer-via-direct-postgrest-update