---
title: "CVE-2026-63414: Shopify App - Broken Access Control"
description: "Shopify App 22.1.0 to 23.0.3 contains a broken access control caused by token-exchange authenticated controllers exposing request-derived shop context instead of verified Shopify ID token or session, letting attackers with a valid session token for one shop access or act on another shop's data, exploit requires token-exchange authentication and reliance on current_shopify_domain or params[:shop]."
url: https://panop.io/threat-heartbeat/CVE-2026-63414/
---

# CVE-2026-63414 Shopify App - Broken Access Control

Shopify App 22.1.0 to 23.0.3 contains a broken access control caused by token-exchange authenticated controllers exposing request-derived shop context instead of verified Shopify ID token or session, letting attackers with a valid session token for one shop access or act on another shop's data, exploit requires token-exchange authentication and reliance on current\_shopify\_domain or params\[:shop\].

CVSS base score 7.6 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Required

EPSS

0.55% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-63414)

## Details

Type

Broken Access Control

Impact

Broken Access Control, Information Disclosure, Data Tampering

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Published

30 October 2026

Updated

1 November 2026

Weakness

[CWE-863](https://cwe.mitre.org/data/definitions/863.html)

## Vendor fix

Update to version 23.0.3 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-63414](https://nvd.nist.gov/vuln/detail/CVE-2026-63414)
- [https://github.com/Shopify/shopify\_app/commit/a09ccc04b9556cbb31c6d56ed81aeb6b9b6c0756](https://github.com/Shopify/shopify_app/commit/a09ccc04b9556cbb31c6d56ed81aeb6b9b6c0756)
- [https://github.com/Shopify/shopify\_app/pull/2081](https://github.com/Shopify/shopify_app/pull/2081)
- [https://github.com/Shopify/shopify\_app/releases/tag/v23.0.3](https://github.com/Shopify/shopify_app/releases/tag/v23.0.3)
- [https://github.com/Shopify/shopify\_app/security/advisories/GHSA-6j52-38f8-qhxr](https://github.com/Shopify/shopify_app/security/advisories/GHSA-6j52-38f8-qhxr)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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