VULNpocalypse

CVE-2025-11953: React Native Community CLI OS Command Injection Vulnerability

Advisory generated from the CVE record, CISA, Exploit Observer and VEDAS: what it is, whether it is exploited, who is affected, and how to fix and detect it.

Generated by VEDAS. Scores as of 2026-11-01 19:19 UTC. Rebuilt every few hours from cve-scores, CISA KEV and vedas-signatures. How this works and its limits.

What it is

The Metro Development Server, which is opened by the React Native Community CLI, binds to external interfaces by default. The server exposes an endpoint that is vulnerable to OS command injection. This allows unauthenticated network attackers to send a POST request to the server and run arbitrary executables. On Windows, the attackers can also execute arbitrary shell commands with fully controlled arguments.

Description quoted from the CVE record (assigned by JFROG, published 2025-11-03).

Weakness: CWE-78 Improper Neutralization of Special Elements used in an OS Command (‘OS Command Injection’)

How it can be exploited

Exploitable over the network with low attack complexity needing no privileges and no user interaction. Impact: confidentiality high, integrity high, availability high. CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA assessment (SSVC): CISA assesses exploitation as active. Automatable: yes. Technical impact: total.

On CISA KEV since
2026-02-05
US federal deadline
2026-02-26
Ransomware use
Not known

Public exploit evidence (Exploit Observer)

Also known as: BDU:2026-01467, CNNVD-202511-058, EUVD-2025-37505, GHSA-399j-vxmf-hjvr, SNYK-JS-REACTNATIVECOMMUNITYCLISERVERAPI-13836141

VEDAS cluster: VEDAS:ARCHANGELARTISTRY

Exploit Observer links 10 pieces of public exploit code or detection modules that name this CVE or one of its aliases.

Exploit code and modules (10)

Code that names this CVE. A repository can be a working exploit, a scanner, a fake or malware; read it before running anything.

Research and write-ups (2)

Vulnerability databases and vendor advisories (9)

Catalogue entries, not exploit evidence.

108 more references returned by Exploit Observer did not name this CVE or an alias, so they are left out.

VEDAS data as of 2026-11-01T17:12 UTC; fetched 2026-11-02.

Live scores

EPSS
0.940
very likely to be attacked soon
VEDAS
0.988
strong exploit evidence
On CISA KEV
Yes, since 2026-02-05
Detection rule
Nuclei · Suricata
EPSS (chance of attack)
10No cve-scores data 2026-02-22 to 2026-08-08no data0.1Added to CISA KEV 2026-02-05CVE-2025-11953 EPSS over time2025-112026-11-01
VEDAS (exploit evidence)
10No cve-scores data 2026-02-22 to 2026-08-08no data0.9Added to CISA KEV 2026-02-05CVE-2025-11953 VEDAS over time2025-112026-11-01

Thin horizontal line: the “likely” (EPSS 0.10) or “strong” (VEDAS 0.90) threshold. Shaded “no data” areas are periods when cve-scores did not publish. The vertical line is the day CISA added it to its exploited list.

Who is affected

ProductAffectedNot affected
(@react-native-community/cli-server-api)from 4.8.0 before 20.0.0Not stated

Version ranges exactly as the CVE record states them. “Before X” means X is the first fixed version.

Exploit Observer also maps it to: meta_platforms_inc react_native_community_cli, react-native-community react_native_community_cli.

How to fix it

Fixed versions stated in the CVE record: 20.0.0.

CISA required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Vendor guidance:

How to detect it

Nuclei template (active check)

Reactnative - Command Injection

The Metro Development Server, which is opened by the React Native Community CLI, binds to external interfaces by default. The server exposes an endpoint that is vulnerable to OS command injection.

Name and description quoted from the template, written by VEDAS.

The template sends 2 requests (GET /status, POST /open-url); it decides using dsl matchers. Severity in the template: critical. Marked as not yet verified against a live vulnerable target.

Run it against a host you own or are authorised to test:

bash
nuclei -u https://your-host -t CVE-2025-11953.yaml
Show the template (52 lines)
yaml
id: CVE-2025-11953

info:
  name: "Reactnative - Command Injection"
  author: vedas-arpsyndicate
  severity: critical
  description: |
    The Metro Development Server, which is opened by the React Native Community CLI, binds to external interfaces
    by default. The server exposes an endpoint that is vulnerable to OS command injection.
  reference:
    - https://www.exploit.observer/?keyword=CVE-2025-11953&match=exact
    - https://subdomain.center/?engine=ammonites&keyword=reactnative&match=exact
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    cvss-score: 9.8
    cve-id: CVE-2025-11953
    cwe-id: CWE-78
  metadata:
    verified: false
  tags: cve,cve2025,react-native,metro,rce,unauth,intrusive,kev,vkev,reactnative
flow: http(1) && http(2)

http:
  - raw:
      - |
        GET /status HTTP/1.1
        Host: {{Hostname}}

    matchers:
      - type: dsl
        dsl:
          - 'status_code == 200'
          - 'contains(body, "packager-status:running")'
          - 'contains(to_lower(header), "x-react-native-project-root")'
        condition: and
        internal: true

  - raw:
      - |
        POST /open-url HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/json

        {"url":"qmzyfc-probe://{{randstr}}"}

    matchers:
      - type: dsl
        dsl:
          - 'status_code == 200'
          - 'len(body) == 0'
          - '!contains(body, "Invalid URL")'
        condition: and

CVE-2025-11953.yaml on GitHub

Suricata rules (network detection)

1 rule that alert on traffic matching this exploit: VEDAS CVE-2025-11953 Reactnative - Command Injection. Add them to your Suricata rule set and reload.

Show the rules
suricata
alert http $EXTERNAL_NET any -> $HTTP_SERVERS $HTTP_PORTS (msg:"VEDAS CVE-2025-11953 Reactnative - Command Injection"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"index.php"; nocase; fast_pattern; content:"m5xg0axlhd8d"; nocase; classtype:web-application-attack; reference:cve,CVE-2025-11953; reference:url,https://www.exploit.observer/?keyword=CVE-2025-11953&match=exact; reference:url,https://subdomain.center/?engine=ammonites&keyword=reactnative&match=exact; sid:1004470; rev:2;)

CVE-2025-11953.rules on GitHub

Advisories on this CVE

References

Vendor advisories and patches

Exploits and technical analysis

Government sources

Other references

Other databases

Where this comes from

This advisory is generated automatically by VEDAS from: CVE.org record, CISA KEV, cve-scores (EPSS and VEDAS), Exploit Observer, vedas-signatures. Text in quotes is reproduced from the source; everything else is a fixed template filled with source fields. Nothing here is written by a language model. Check the vendor advisory before acting, and read how VEDAS and Exploit Observer work, and their limits.