Vulnerability in Capgo
CVE-2026-56257
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N.
EPSS exploit prediction
EPSS: 0.003 (22.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 22nd percentile — 22.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Capgo — versions 0, 12.128.2
Weakness classification (CWE)
References
- github.com/Cap-go/capgo/security/advisories/GHSA-v9jp-r5wh-qqcp (vendor-advisory)
- www.vulncheck.com/advisories/capgo-authorization-bypass-in-app-ownership-transf… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-56257?
- CVE-2026-56257 is a high-severity vulnerability in Capgo, classified under Improper Access Control. CVSS score: 7.1/10. Published 2026-06-24.
- How severe is CVE-2026-56257?
- High severity. CVSS v3 base score is 7.1 out of 10.