VulnSocial

CVE-2026-42211Disclosure(shopify / react-router)

LOWCVSS 8.1 · HIGH

Signal is active with 3 mentions in latest observed window

Immediate actions

  • Patch shopify react-router systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

React Router is a router for React. In versions 7.0.0 through 7.14.1, when using Framework Mode, a combination of steps could potentially allow unauthorized remote code execution (RCE) through external requests. This attack requires the application code to have an existing prototype pollution vulnerability, which can then be leveraged in a 2-step attack where the second step triggers unauthorized RCE on the remote server. This does not impact applications using Declarative Mode (`<BrowserRouter>`) or Data Mode (`createBrowserRouter/<RouterProvider>`). This is patched in version 7.14.2.

shopify CVEsBack to dashboard
0.5/ 10 priority

Sources & remediation

Vendor / third-party advisories
Weakness type (CWE)
CWE-502

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • react-router

Threat summary

  • Patch or workaround signal is available
  • 6 mentions across 3 observed days
  • Momentum state: stable

What's happening

  • Patch or workaround mentioned in 2 signals
  • Technical details provided in 6 signals
  • Disclosure: 4 classified signals
  • General: 2 classified signals
  • Peaked at 3 mentions on most recent observed day (2026-06-09)
  • 6 total mentions across 3 days

Affected systems

Vendors
shopify
Products
react-router

Deep dive

Activity timeline6 mentions / 3d
01223Mentions · 2026-06-04: 1Mentions · 2026-06-05: 2Mentions · 2026-06-09: 3Patch / Workaround · 2026-06-05: 1Patch / Workaround · 2026-06-09: 1Technical Details · 2026-06-04: 1Technical Details · 2026-06-05: 2Technical Details · 2026-06-09: 306-0406-0506-09
Signal classification2 categories
Disclosure
466.7%
General
233.3%
Referenced assets3 URLs
Classification over time
DateTotalLabels
2026-06-041
Disclosure1
2026-06-052
Disclosure2
2026-06-093
Disclosure1General2
Full discourse6 posts
  • ZoomEye@zoomeye_team
    Disclosure

    🚨 cve-2026-42211: React Router's vendored turbo-stream v2 allows arbitrary constructor invocation via TYPE_ERROR deserialization leading to Unauth RCE Critical Vulnerability Alert! React Router is affected by CVE-2026-42211. Full Vulnerability Details & Analysis at DarkEye: 🔗 https://darkeye.org/vuln/cve/cve-2026-42211 🔍 Identify Targets via ZoomEye: Filter: vul.cve="cve-2026-42211" Search Dork: app="React Router" Exposure: 1.3m instances identified globally. ZoomEye Search Link: 👉 https://www.zoomeye.ai/searchResult?q=YXBwPSJSZWFjdCBSb3V0ZXIi&t=all&utm_source=twitter&utm_medium=social&utm_campaign=cve_ops_20260605 #Infosec #CyberSecurity #ZoomEye #DarkEye

    Post summary

    The tweet announces CVE-2026-42211, describing its technical flaw (unsecured constructor invocation via deserialization in React Router’s turbo-stream v2) and providing links to detailed analysis and exposure data, but does not mention a PoC, exploit code, active exploitation, patch, or debunking.

    214033216.6K
    12.6K followersView on X
  • Lyrie.ai@lyrie_ai
    General

    CVE-2026-42211. 0day Intel: 🚨 cve-2026-42211: React Router's vendored turbo-stream v2 allows arbitrary cons

    Post summary

    The tweet references CVE-2026-42211, noting a flaw in React Router's turbo-stream v2 that enables arbitrary consumption, but it does not provide a PoC, exploit details, or patch information.

    1000042
    258 followersView on X
  • Lyrie.ai@lyrie_ai
    General

    Vendor. 0day Intel: 🚨 cve-2026-42211: React Router's vendored turbo-stream v2 allows arbitrary cons

    Post summary

    A brief alert about CVE‑2026‑42211, pointing out a flaw in React Router's turbo‑stream v2 that could enable arbitrary consumer actions, with no further detail on exploitation or mitigation.

    1000042
    258 followersView on X
  • Diego Artiles@dartilesm
    Disclosure

    🚨 React Router Framework Mode: prototype pollution anywhere in your app can now become RCE. CVE-2026-42211 hits v7.0.0–7.14.1. BrowserRouter and RouterProvider are safe. Patch is 7.14.2. Running Framework Mode? Ship the upgrade.

    Post summary

    CVE‑2026‑42211 is a prototype pollution vulnerability that can lead to RCE in React Router v7.0.0–7.14.1, and a patch (v7.14.2) is available to remediate the issue.

    0000028
    48 followersView on X
  • Upwind Security MDR@UpwindMDR
    Disclosure

    🚨 High - React Router Framework Mode RCE Chain (CVE-2026-42211) React Router's vendored turbo-stream v2 can be abused to achieve unauthenticated remote code execution when combined with an existing prototype pollution vulnerability in the application. The issue affects Framework Mode deployments and may allow arbitrary constructor invocation through unsafe deserialization. 👉 Affected: React Router 7.0.0–7.14.1 | Fix: 7.14.2

    Post summary

    CVE-2026-42211 is a high‑severity RCE vulnerability in React Router's turbo‑stream v2, mitigated by upgrading to version 7.14.2.

    0000075
    207 followersView on X
  • DailyCVE@dailycve
    Disclosure

    🔴 #React Router Framework Mode, Deserialization RCE, #CVE-2026-42211 (Critical) -DC-Jun2026-207 https://dailycve.com/react-router-framework-mode-deserialization-rce-cve-2026-42211-critical-dc-jun2026-207/

    Post summary

    The tweet announces a new critical deserialization RCE vulnerability (CVE‑2026‑42211) in React Router Framework Mode, linking to a daily CVE report but providing no PoC, exploit, or patch details.

    0000071
    208 followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appshopifyreact-router-node.js-

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