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Commerce Core

CVE-2026-118539Updated Nov 1, 2026
Act nowAttacks confirmed

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Security advisory

Drupal Commerce: patch active exploitation and audit orders

Drupal confirms active exploitation of an access bypass in Commerce Core that may financially impact merchants. Update the affected module and audit orders for inconsistencies.

Who should check: Operators of stores and decoupled applications using affected releases of the Drupal Commerce Core module.

Recommended actionFix available

Update Commerce Core to 3.3.13 or 8.x-2.41 for the applicable branch, verify the deployed version and audit orders for inconsistencies.

What is the vulnerability and its impact?

Commerce Core does not sufficiently protect certain routes and entity fields. The October 28 advisory confirms exploitation in the wild; it does not establish when attacks began. Scope this advisory to affected Commerce installations, including decoupled applications using its APIs.

The fixes are branch-specific. Updating Drupal core alone does not replace the affected Commerce module. The vendor also calls for auditing orders for inconsistencies. Preserve relevant records and investigate unexplained differences; patching does not reverse earlier changes to orders.

Drupal's Highly critical rating uses its own 21/25 risk scale. It is not a CVSS score. The release pages address several advisories; the exploitation evidence here applies specifically to CVE-2026-118539.

Vendor / publisher
Drupal
Vulnerability identifiers
CVE-2026-118539
Access required
No login required
Disclosed
Oct 28, 2026
Latest evidence check
Nov 1, 2026 UTC

Which systems and versions are affected?

ProductAffectedFixed release / action
Commerce Core — earlier branchEarlier releases below 2.41; the vendor recommends the 8.x-2.41 release.8.x-2.41
Commerce Core 3.x3.0.0 through versions before 3.3.133.3.13

Use the guidance for your product and release branch. Confirm distribution backports with the vendor; the product name alone does not establish exposure.

What is known about exploitation?

Observed attacks

Attacks confirmed

Priority rationale

Drupal confirms exploitation in the wild and rates authentication as not required. Prioritize affected Commerce deployments because the access bypass can financially impact merchants.

What does this mean for AI environments?

Check agent integrations only if they use the affected Commerce routes or entity fields. The advisory does not establish AI involvement in exploitation.

Sources behind this advisory

Open supporting evidence and technical record
Editorial record1 entry

Added coverage of the October 28 vendor advisory, branch-specific fixes and order-audit guidance.

Response actions

Plan your response

0 of 4 actions recorded as done

Use this checklist to decide whether the advisory affects your systems, record what your team does and share the result. Radar does not scan or verify your environment.

Changes save automatically in this browser. They are not synced with your team or sent to Oktsec.

1. Check whether this applies

Check affected systems and versions, then record your decision below. If you are unsure, choose “Needs verification”.

Applicability decisionNot assessed

2. Track the response

Name the system and person or team handling the work. Update each action as you go; add a ticket reference or notes to explain what was checked.

  1. Find affected Commerce deployments

    Identify installations using drupal/commerce, record the deployed version and map storefront and API entry points. A Drupal installation without the affected module does not establish exposure.

    Add evidence or notesUse references only. Do not store credentials or confidential data here.
  2. Update the applicable module branch

    Install Commerce Core 3.3.13 for 3.x, or 8.x-2.41 for the earlier branch, using the site's dependency and deployment process. Verify the running version rather than relying only on a changed lockfile.

    Add evidence or notesUse references only. Do not store credentials or confidential data here.
  3. Audit orders for inconsistencies

    The vendor requires an order audit alongside the update. Oktsec recommends reconciling orders with payment and fulfillment records, preserving unexplained discrepancies and related logs for investigation.

    Add evidence or notesUse references only. Do not store credentials or confidential data here.
  4. Verify checkout and record findings

    Check legitimate checkout and order-management operations after deployment. Record the installed version, order-review scope and unresolved discrepancies. A successful update does not establish that earlier orders were unaffected.

    Add evidence or notesUse references only. Do not store credentials or confidential data here.

3. Share the plan

Download a Markdown file with your decision, action status, notes and source links. Share it with your team or attach it to a ticket.

VERIFY YOUR ENVIRONMENT

Affected systems & fixes

Open response plan

Compare the running version and configuration with the vendor guidance.

ProductAffectedFixed release / action
Commerce Core — earlier branchEarlier releases below 2.41; the vendor recommends the 8.x-2.41 release.8.x-2.41
Commerce Core 3.x3.0.0 through versions before 3.3.133.3.13

Confirm distribution backports with the vendor. A matching product alone does not establish exposure.

Access requiredNo login required
TRACEABLE EVIDENCE

Evidence & sources

Checked Nov 1, 2026 UTC

Why this priority

Drupal confirms exploitation in the wild and rates authentication as not required. Prioritize affected Commerce deployments because the access bypass can financially impact merchants.

Prioritization criteria

CISA KEV evidence

Catalog 2026.10.29 · Checked Oct 30, 2026 UTC

No matching CVE appears in the reviewed catalog snapshot. This does not establish that exploitation has not occurred. Check the incident sources and vendor guidance.

Supporting evidence

Product / CVEAttack evidenceSource guidance
Commerce CoreCVE-2026-118539Attacks confirmed

Reported by the sources linked in this advisory.

Drupal sourceReview affected systems
Forecasts by CVE1 CVE
CVE-2026-118539

Forecast unavailable. This is not a zero score.

FIRST EPSS · Checked 2026-10-27 15:30 UTC

Priority applies to the parent advisory, not separately to every product or CVE. Each row shows only the evidence attributed to that CVE. Missing attack evidence does not mean a vulnerability is safe to ignore. Your environment has not been scanned.

Sources

Technical facts come from these sources. Response priorities and recommended actions are Oktsec’s analysis.

  1. SA-CONTRIB-2026-254: Commerce Core access bypassDrupal · Vendor notice · Checked Nov 1, 2026 UTC
  2. Commerce Core 3.3.13 security releaseDrupal · Vendor notice · Checked Nov 1, 2026 UTC
  3. Commerce Core 8.x-2.41 security releaseDrupal · Vendor notice · Checked Oct 31, 2026 UTC
Technical recordProducts, identifiers and supporting details
Incident record
Product / serviceCommerce CoreDrupal
CVECVE-2026-118539
Exploitation evidence
Attacks confirmed
Access requiredNo login required
Fix / response
Disclosed
Oct 28, 2026
Record reviewed
Nov 1, 2026 UTC

For AI agent environments

Check agent integrations only if they use the affected Commerce routes or entity fields. The advisory does not establish AI involvement in exploitation.