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CVE-2026-56257

Capgo - Authorization Bypass in App Ownership Transfer via Direct PostgREST Update

HIGH
7.1
CVSS Score
Published: June 24, 2026 at 11:53 AM UTC
Updated: June 27, 2026 at 11:42 AM UTC
1 product affected across 1 vendorCapgo

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Severity
HIGH7.1
Exploit prediction
EPSS 0.3%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Capgo· Capgonpm
60%
v < 12.128.2
Vendor states this is fixed in 12.128.2 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

Vendor Advisory
Source: cverecord
https://github.com/Cap-go/capgo/security/advisories/GHSA-v9jp-r5wh-qqcp
Third Party Advisory
Source: cverecord
https://www.vulncheck.com/advisories/capgo-authorization-bypass-in-app-ownership-transfer-via-direct-postgrest-update

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.1HIGHVulnCheck
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-284

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