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.
CVE-2026-56829
HIGHPre-NVD 8.18.1—Elevated
EchelonGraph scoreMEDIUM confidence
This high-severity CVE scores 8.1 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.5%, top 60% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
Triggered by: NVD CVSS baseline
Sources: epss, secondary
8.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.1Exploit: Elevated riskExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 8.1
- EG Score
- 8.1(medium)
- EG Risk
- 52(Track)EG Risk 52/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity81% × 45%Exploitation40% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 0%
- EPSS %ILE
- 40%
- KEV
- Not listed
Published
September 11, 2026
Last Modified
September 15, 2026
Advisory Details (4)
Auto-updated Sep 15, 2026🔬 Proof of concept available. Patch available. Sources: github_commit, github_release, github, github_pr.
github_release Patch Available
v2.9.2
Patch available: shopperlabs/shopper v2.9.2
https://github.com/shopperlabs/shopper/releases/tag/v2.9.2github_commit Patch Available
commit bf72e2753e21 (shopperlabs/shopper)
Patch available: shopperlabs/shopper v2.9.2 (contains commit bf72e2753e21)
https://github.com/shopperlabs/shopper/commit/bf72e2753e21296184596d507336c7d65ecd46ffgithub_pr Patch Available
fix(admin): enforce authorization on unguarded settings and bulk actions
Patch available: shopperlabs/shopper v2.9.2 (PR #570 merged 2026-06-22)
https://github.com/shopperlabs/shopper/pull/570github Patch Available🟡 PoC Available
Unauthorized inventory stock manipulation via unlocked variant property in VariantStock component · Advisory · shopperlabs/shopper · GitHub
https://github.com/shopperlabs/shopper/security/advisories/GHSA-g3f9-g5vj-p62fVendor Advisories for CVE-2026-56829(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Affected Packages
(1 across 1 ecosystem)
Packagist(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| shopper/framework | v2.0.0 ... v2.9.1 (63 versions) | 2.9.2 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 10× in last 7d / 11× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-09-20 03:24 UTCEG score recompute
- 2026-09-19 01:37 UTCEG score recompute
- 2026-09-18 19:28 UTCEPSS rescore
- 2026-09-17 23:52 UTCEG score recompute
- 2026-09-17 19:31 UTCEPSS rescore
- 2026-09-16 21:42 UTCEG score recompute
- 2026-09-16 14:08 UTCEPSS rescore
- 2026-09-15 19:40 UTCEG score recompute
- 2026-09-15 19:14 UTCEG score recompute
- 2026-09-15 18:36 UTCEG score recompute
- 2026-09-11 22:24 UTCEG score recompute
Related CVEs(same CWE)
Frequently asked(5)
What is CVE-2026-56829?
CVE-2026-56829 is a high vulnerability published on September 11, 2026. Shopper is a Headless e-commerce Admin Panel. Prior to 2.9.2, packages/admin/src/Livewire/Components/Products/VariantStock.php exposes stockAction() without editproductvariants authorization and leaves public $variant client mutable because it lacks the Livewire Locked attribute. Any authenticated…
When was CVE-2026-56829 disclosed?
CVE-2026-56829 was first published in the National Vulnerability Database on September 11, 2026, with the most recent update on September 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-56829 actively exploited?
CVE-2026-56829 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 60.2% of all scored CVEs.
What is the CVSS score of CVE-2026-56829?
CVE-2026-56829 has a CVSS v3 base score of 8.1 (NVD).
How do I remediate CVE-2026-56829?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-56829, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-56829
Is Your Infrastructure Affected by CVE-2026-56829?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.